27 products
27 products
We specialize in the supply of 201 stainless steel bars, providing round, square, hexagonal, and flat bars with stable quality and consistent mechanical performance.
Based on application requirements, we support customized diameter, length, and surface finish, ensuring accurate material selection for fabrication and machining needs.
By Manufacturing Process:
Hot rolled 201 stainless steel bar, Cold drawn 201 stainless steel bar
By Bar Shape:
201 round bar, 201 square bar, 201 flat bar, 201 hexagonal bar
Specifications
| Item | Description |
|---|---|
| Product Form | Bar |
| Diameter / Size | Round: 3–300 mm |
| Flat Bar | Width 10–150 mm, Thickness 3–50 mm |
| Length | 3000–6000 mm or customized |
| Surface Finish | Black, Pickled, Bright, Polished |
| Manufacturing Process | Hot rolled / Cold drawn |
| Straightness | According to standard or customized |
201 Stainless Steel Bar
201 stainless steel bar is an austenitic chromium-manganese stainless steel developed as a cost-effective alternative to nickel-containing grades.
By partially replacing nickel with manganese and nitrogen, 201 stainless steel offers good mechanical strength and formability while maintaining basic corrosion resistance in mild environments.
It is widely used in structural components, decorative parts, and general fabrication where strength and economy are prioritized over high corrosion resistance.
Mechanical Properties (Typical)
| Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|
| ≥ 520 | ≥ 275 | ≥ 40 | ≤ 217 |
Chemical Composition (Typical)
| C (%) | Cr (%) | Mn (%) | Si (%) | P (%) | S (%) | Ni (%) | N (%) |
|---|---|---|---|---|---|---|---|
| ≤ 0.15 | 16.0 – 18.0 | 5.5 – 7.5 | ≤ 1.00 | ≤ 0.06 | ≤ 0.03 | 3.5 – 5.5 | ≤ 0.25 |
Heat Treatment of 201 Stainless Steel Bar
1.Solution Annealing
Temperature range: 1010–1080°C
Process: Rapid cooling after heating
Purpose: Restores ductility, improves corrosion resistance, and stabilizes austenitic structure
2.Stress Relieving
Applied after cold drawing or machining
Helps reduce residual stress and dimensional distortion
3.Hardening
201 stainless steel cannot be hardened by heat treatment
Strength enhancement is achieved through cold working
4.Performance Balance
Proper heat treatment ensures uniform mechanical properties and stable performance during forming and machining operations.
Features of 201 Stainless Steel Bar
Strength Performance: Higher tensile strength than 304 in cold-worked condition, suitable for load-bearing components.
Cost Advantage: Reduced nickel content significantly lowers material cost.
Formability: Good cold workability for bending, drawing, and shaping.
Magnetic Behavior: Non-magnetic in annealed condition; may become slightly magnetic after cold working.
Corrosion Resistance: Adequate for indoor and mild environments; not recommended for chloride-rich or marine conditions.
Applications of 201 Stainless Steel Bar
Structural Components: frames, supports, brackets; recommended diameter: 8–50 mm.
Decorative Parts: railings, handles, architectural elements; recommended polished bars.
Machinery Components: shafts, pins, fasteners; recommended cold drawn bars for dimensional accuracy.
Furniture Manufacturing: connectors and load-bearing elements; recommended round or flat bars.
General Fabrication: cutting, welding, and machining applications with cost sensitivity.
FAQ – 201 Stainless Steel Bar
1.Is 201 stainless steel bar magnetic?
It is generally non-magnetic in annealed condition but may exhibit slight magnetism after cold working.
2.Can 201 stainless steel bar be welded?
Yes, standard welding methods can be used, but proper control is required to minimize cracking and distortion.
3.How does 201 compare to 304 stainless steel bar?
201 offers lower cost and higher strength, while 304 provides better corrosion resistance and long-term stability.
4.Is 201 stainless steel suitable for outdoor use?
It can be used in mild outdoor environments but is not suitable for coastal or high-humidity areas.
We specialize in the supply of a full range of 201 stainless steel coils and support customized processing services, accurately matching application requirements based on cost efficiency, mechanical performance, and fabrication needs.
By Manufacturing Process:
Cold rolled 201 stainless steel coil, Hot rolled 201 stainless steel coil
By Surface Treatment Type:
201 Mirror Stainless Steel Coil (8K), 201 Brushed Stainless Steel Coil (Long / Short Grain), 201 Embossed Stainless Steel Coil, 201 Sandblasted Stainless Steel Coil
Specifications
| Item | Specification |
|---|---|
| Product Type | 201 Stainless Steel Coil |
| Manufacturing Process | Cold Rolled (CR), Hot Rolled (HR) |
| Thickness Range | Thin gauge to medium thickness |
| Width | Standard mill width or custom slitting |
| Inner Diameter | 508 mm / 610 mm (or customized) |
| Coil Weight | As per mill standard or customer requirement |
| Surface Finish | 2B, BA, No.4, Polished |
| Edge Condition | Mill edge, slit edge |
| Supply Condition | Annealed and pickled |
| Processing Service | Slitting, cutting-to-length, leveling |
Chemical Composition (Typical)
| Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) |
|---|---|---|---|---|---|---|---|
| 201 | ≤ 0.15 | ≤ 1.00 | 5.5 – 7.5 | ≤ 0.060 | ≤ 0.030 | 16.0 – 18.0 | 3.5 – 5.5 |
Mechanical Properties (Typical)ASTM A240
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 201 | ≥ 515 | ≥ 275 | ≥ 40 | ≤ 241 |
*Annealed and pickled (AP) or as required.
Heat Treatment of 201 Stainless Steel Coil
1. Annealing (Solution Treatment)
Temperature range: 1010–1120°C
Process: Rapid cooling in water or air after heating
Purpose: Restores ductility and formability after cold rolling
2. Stress Relieving
Applied after heavy cold working
Helps reduce residual stresses during further processing
3. Hardening
201 stainless steel coil cannot be hardened by heat treatment
Strength improvement is achieved through cold working
4. Performance Balance
Proper heat treatment improves forming performance and reduces cracking risk during stamping and bending.
Features of 201 Stainless Steel Coil
Cost Efficiency:
Lower nickel content provides a more economical alternative to 304 stainless steel.
Mechanical Strength:
Higher yield strength compared to 304, suitable for structural and formed components.
Formability:
Good ductility for rolling, bending, and general forming processes.
Surface Quality:
Smooth and uniform surface suitable for decorative and industrial use.
Magnetic Property:
Slightly magnetic after cold working.
Applications of 201 Stainless Steel Coil
Decorative and Architectural Use:
interior panels, trims, ceilings; recommended: thin gauge coils.
Appliance Manufacturing:
appliance housings, frames, panels; recommended: 2B or BA finish.
Furniture and Fixtures:
metal furniture frames, shelving; recommended: cold rolled coils.
General Fabrication:
formed parts where moderate corrosion resistance is sufficient; recommended: medium thickness coils.
Cost-Sensitive Projects:
applications requiring stainless appearance at controlled material cost.
FAQ – 201 Stainless Steel Coil
Q1: What is the main difference between 201 and 304 stainless steel coil?
201 stainless steel coil has lower nickel and higher manganese content, offering cost advantages with reduced corrosion resistance compared to 304.
Q2: Is 201 stainless steel coil suitable for outdoor use?
It is suitable for indoor or low-corrosive environments. For outdoor or aggressive conditions, higher grades such as 304 or 316 are recommended.
Q3: Can 201 stainless steel coil be welded and formed?
Yes. It can be welded and formed using standard fabrication methods with proper control.
Q4: Is 201 stainless steel coil magnetic?
It is generally non-magnetic in annealed condition but may become slightly magnetic after cold working.
We supply a full range of 201 stainless steel pipes and tubes with reliable quality and flexible customization for industrial and architectural applications. Our products are available in various sizes, wall thicknesses, surface finishes, and processing options to meet structural, mechanical, decorative, and general fabrication requirements.
Available wall thickness ranges from 0.5 mm to 20 mm, with common outer diameters such as 1/2″, 3/4″, 1″, or custom cut-to-size upon request.
By Manufacturing Process:
Cold Drawn 201 Stainless Steel Seamless Pipe, Hot Rolled 201 Stainless Steel Seamless Pipe, ERW 201 Stainless Steel Pipe, Welded 201 Stainless Steel Tube
By Surface Treatment Type:
201 Pickled Stainless Steel Pipe, 201 Bright Annealed Stainless Steel Tube (BA), 201 Polished Stainless Steel Pipe, 201 Mirror Stainless Steel Tube, 201 Brushed Stainless Steel Tube
Specifications
| Item | Specification |
|---|---|
| Material Grade | 201 Stainless Steel |
| UNS No. | S20100 |
| EN Grade | 1.4372 |
| Standards | ASTM A554, ASTM A312, ASTM A269, EN 10217, JIS G3446 |
| Pipe Type | Seamless Pipe / Welded Pipe |
| Manufacturing Process | Cold Drawn, Hot Rolled, ERW, Welded |
| Outer Diameter (OD) | 6 mm – 219 mm (1/4″ – 8″) |
| Wall Thickness | 0.5 mm – 20 mm |
| Length | 6 m, 12 m, or Custom Length |
| Surface Finish | Pickled, Bright Annealed (BA), Polished, Mirror, Brushed |
| End Type | Plain End, Beveled End |
| Form | Round Pipe (Other shapes available upon request) |
| Condition | Annealed / Cold Worked |
| Application | Structural, Decorative, Mechanical, General Fabrication |
| Custom Service | Cutting, Polishing, Bending, Welding |
201 Stainless Steel Pipe
201 stainless steel is an austenitic chromium-manganese stainless steel grade. Its typical chemical composition includes 16.0–18.0% chromium (Cr), 3.5–7.5% manganese (Mn), ≤ 4.5% nickel (Ni), and ≤ 0.15% carbon (C). By partially replacing nickel with manganese, 201 stainless steel provides a cost-effective alternative to 304 stainless steel while maintaining good strength and formability.
Compared with higher-nickel austenitic grades, 201 stainless steel pipe offers higher yield strength, good cold-working performance, and acceptable corrosion resistance in indoor, dry, or mildly corrosive environments. It is widely used in applications where appearance, strength, and cost efficiency are prioritized over high corrosion resistance.
Chemical Composition (Typical, %)
| Element | C | Si | Mn | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 201 | ≤0.15 | ≤1.00 | 3.5–7.5 | ≤0.060 | ≤0.030 | 16.0–18.0 | ≤4.5 |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 520 MPa |
| Yield Strength | ≥ 275 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
Heat Treatment of 201 Stainless Steel Pipe / Tube
1. Annealing
Temperature range: 1010–1065 °C
Process: Heating followed by rapid cooling (water quenching or air cooling, depending on thickness)
Purpose:
Relieves stresses caused by cold forming and welding, restores austenitic structure, and improves ductility and corrosion resistance.
2. Stress Relieving
Applied after cold working or welding, especially for precision pipes.
Helps reduce residual stress and improves dimensional stability during fabrication and service.
3. Hardening
201 stainless steel cannot be hardened by conventional heat treatment.
Mechanical properties are mainly determined by chemical composition and cold working, not by heat treatment.
4. Performance Stability
Proper solution annealing stabilizes the austenitic microstructure, improves formability, and enhances performance consistency, especially in welded areas.
Ensures reliable performance in decorative, structural, and general fabrication applications.
Note: 201 stainless steel is an austenitic grade and cannot be strengthened by heat treatment. Heat treatment is used for stress relief, structure restoration, and formability improvement rather than strength enhancement.
Features of 201 Stainless Steel Pipe / Tube
Corrosion Resistance:
Moderate resistance to atmospheric corrosion and mild environments. Suitable for indoor and low-corrosion applications, but not recommended for marine or highly corrosive conditions.
Mechanical Properties:
Higher yield strength than 304 stainless steel in cold-worked condition, with good ductility and forming performance.
Weldability:
Good weldability using standard stainless steel welding methods. Post-weld annealing may be applied to improve weld zone stability when required.
Magnetic Property:
Generally non-magnetic in annealed condition, but slight magnetism may appear after cold working.
Cost Efficiency:
Lower nickel content provides a cost-effective alternative to 304 stainless steel for applications where high corrosion resistance is not critical.
Applications of 201 Stainless Steel Pipe / Tube
Decorative and Architectural Use:
Handrails, railings, furniture frames, indoor decorative structures;
Recommended: thin to medium wall tubes.
Furniture and Fixtures:
Metal furniture frames, display racks, shop fittings;
Recommended: polished or brushed surface tubes.
Structural and Fabrication Use:
Indoor support structures, light-duty frames, welded assemblies;
Recommended: standard wall thickness pipes.
Household and Commercial Equipment:
Appliance frames, enclosures, support components;
Recommended: small to medium diameter tubes.
Indoor Piping Systems:
Non-pressure or low-corrosion fluid and air conveyance;
Recommended: welded pipes in annealed condition.
201 stainless steel pipes are especially suitable for indoor or low-corrosion environments where appearance, strength, and cost control are key considerations.
FAQ – 201 Stainless Steel Pipe / Tube
Q1: Does 201 stainless steel pipe require heat treatment?
Heat treatment is not always required. Annealing is commonly used after cold forming or welding to relieve stress and restore ductility.
Q2: Can 201 stainless steel pipe be hardened by heat treatment?
No. 201 stainless steel cannot be hardened by heat treatment. Strength is mainly influenced by cold working.
Q3: Is 201 stainless steel pipe suitable for outdoor use?
It can be used in mild outdoor environments, but it is not recommended for coastal or highly corrosive conditions.
Q4: Does 201 stainless steel pipe become magnetic?
In annealed condition, it is generally non-magnetic. Cold working may introduce slight magnetism.
Q5: When is post-weld heat treatment recommended for 201 stainless steel pipes?
Post-weld annealing is recommended for precision, heavily welded, or high-formability applications, but may not be necessary for general decorative or structural use.
We supply a full range of 201 stainless steel sheets and plates with flexible customization and reliable quality. Available in various sizes, thicknesses, finishes, and processing options to meet both decorative and industrial needs.
Our 201 stainless steel sheets (typically ≤6 mm) and plates (>6 mm) come in a wide range of thicknesses, sizes, and surface finishes to suit decorative, architectural, structural, and general fabrication requirements.
Available in thicknesses from 0.3mm to 30mm， and in common sizes such as 4×8 ft (1219 × 2438 mm) ；5×10 ft (1500 × 3000 mm) ；Custom Cut-to-Size: Available upon request
By Manufacturing Process:
Cold Rolled 201 Stainless Steel Sheet / Plate, Hot Rolled 201 Stainless Steel Plate
By Surface Treatment Type:
201 Mirror Stainless Steel Sheet (8K), 201 Brushed Stainless Steel Sheet (Long Grain / Short Grain), 201 Embossed Stainless Steel Sheet, 201 Sandblasted Stainless Steel Sheet
| Parameter | Description |
| Grade | 201 Stainless Steel (AISI / ASTM / EN / Equivalent Available) |
| Thickness Range | 0.3 mm – 30 mm (custom cut-to-size available) |
| Width × Length | Common sizes: 1219×2438 mm (4×8 ft), 1500×3000 mm (5×10 ft) |
| Surface Finish | 2B, BA (bright annealed), No.4 (brushed), HL (hairline), Mirror, Embossed |
| Edge Type | Mill edge / Slit edge |
| Tolerance | ASTM A480 standard tolerance |
| Processing Services | Cutting, bending, polishing, laser cutting, surface coating |
| Packaging | Export-grade waterproof wrapping + wooden pallet |
| MOQ | Flexible – supports both small and bulk orders |
201 Stainless Steel Sheets/Plates
201 stainless steel is an austenitic stainless steel grade featuring a balanced blend of chromium (about 16–18%), manganese (5–8%), and reduced nickel (3.5–5.5%). Compared with higher-nickel grades like 304/316, 201 offers excellent cost efficiency while maintaining good corrosion resistance and strength, making it ideal for applications that do not demand extreme chemical resistance.
Chemical Composition of 201 Stainless Steel (wt%)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.15 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | 5.5 – 7.5 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 3.5 – 5.5 |
| Nitrogen (N) | ≤ 0.25 |
| Phosphorus (P) | ≤ 0.06 |
| Sulfur (S) | ≤ 0.03 |
Mechanical Properties of 201 Stainless Steel Sheet / Plate
| Property | Typical Value |
|---|---|
| Tensile Strength | 520 – 750 MPa |
| Yield Strength (0.2%) | ≥ 275 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 95 HRB |
| Density | ~7.93 g/cm³ |
| Melting Point | ~1400 – 1450°C |
Heat Treatment of 201 Stainless Steel
201 stainless steel is an austenitic stainless steel and cannot be hardened by heat treatment. Heat treatment is mainly used to restore ductility, improve corrosion resistance, and relieve internal stress after cold working or welding.
Common Heat Treatment Methods:
1、Solution Annealing
Heating to 1010–1120°C, followed by rapid cooling (water quenching) to achieve a uniform austenitic structure/
2、Stress Relief Annealing
Used after heavy cold forming or welding to reduce residual stress and improve dimensional stability.
⚠️ Note: Excessive heat exposure or improper cooling may reduce corrosion resistance due to carbide precipitation.
Features of 201 Stainless Steel Plates
1、Cost-Effective Austenitic Stainless Steel
Lower nickel content makes 201 stainless steel sheet a budget-friendly alternative to 304 stainless steel.
2、Good Strength & Formability
Higher manganese content improves tensile strength while maintaining acceptable ductility for bending and forming.
3、Moderate Corrosion Resistance
Suitable for indoor, dry, or mildly corrosive environments. Not recommended for marine or high-chloride conditions.
4、Good Weldability
Compatible with TIG, MIG, and arc welding. Proper post-weld treatment is recommended for corrosion-sensitive applications.
5、Decorative Surface Performance
Performs well in mirror, brushed, embossed, and sandblasted finishes for architectural and decorative uses.
Typical Applications
201 stainless steel sheet and plate are widely used for:
Kitchen & Food Equipment: Counters, sinks, range hoods, work surfaces (0.8 – 1.5 mm)
Interior Decoration: Wall panels, elevator doors, ceiling panels
Furniture & Appliances: Refrigerator panels, cabinet doors, table frames
Automotive & Transportation: Trim strips, inner panels, luggage racks
Architecture & Construction: Handrails, decorative cladding, light structural parts
Commercial Displays & Fixtures: Sign boards, shop fittings, aesthetic trims
201 Stainless Steel Sheet & Plate – FAQs
Q1: What is 201 stainless steel sheet?
201 stainless steel sheet is a low-nickel, austenitic stainless steel sheet containing higher manganese, offering good strength and cost efficiency for general and decorative applications.
Q2: Is 201 stainless steel better than 304?
201 stainless steel is more cost-effective than 304, but it has lower corrosion resistance. 304 stainless steel is preferred for harsher or corrosive environments.
Q3: What are common applications of 201 stainless steel sheets?
201 stainless steel sheets are commonly used in interior decoration, kitchen equipment, furniture, appliances, architectural panels, and general fabrication.
Q4: Can 201 stainless steel be used outdoors?
201 stainless steel can be used outdoors in mild environments but is not recommended for coastal, marine, or high-chloride conditions.
Q5: Is 201 stainless steel food grade?
201 stainless steel is generally used for non-critical food contact or auxiliary equipment. For strict food-grade applications, 304 or 316 stainless steel is recommended.
Q6: Can 201 stainless steel sheet be welded?
Yes, 201 stainless steel sheet can be welded using TIG, MIG, or arc welding. Proper welding procedures help maintain performance and corrosion resistance.
Q7: What thicknesses are available for 201 stainless steel plate?
201 stainless steel sheets and plates are available in thicknesses from 0.3 mm to 30 mm, with custom cut-to-size options available.
Q8: What surface finishes are available for 201 stainless steel sheet?
Common finishes include mirror (8K), brushed (long or short grain), embossed, sandblasted, BA, and 2B finishes.
Q9: Is 201 stainless steel magnetic?
201 stainless steel is generally non-magnetic in the annealed condition but may become slightly magnetic after cold working.
Q10: What is the difference between cold rolled and hot rolled 201 stainless steel?
Cold rolled 201 stainless steel has a smoother surface and tighter tolerances, while hot rolled 201 stainless steel plate is typically used for thicker and structural applications.
Q11: Can 201 stainless steel rust?
201 stainless steel has moderate corrosion resistance. In humid or chloride-rich environments, surface corrosion may occur if not properly maintained.
Q12: Do you provide custom sizes and processing for 201 stainless steel sheets?
Yes, custom sizes, cutting, polishing, bending, and other processing services are available based on project requirements.
3003 aluminum coil is one of the most widely used aluminum alloys in the 3xxx series. It is a non-heat-treatable aluminum alloy with manganese as the primary alloying element, offering a balanced combination of formability, corrosion resistance, and cost efficiency.
Because of its stable performance and ease of processing, 3003 aluminum coil is commonly selected for general-purpose applications where moderate strength and good workability are required.
Why 3003 Aluminum Coil Is Widely Used
Compared with carbon steel, stainless steel, and other aluminum alloys, 3003 aluminum coil has several practical characteristics that influence material selection:
Lightweight Material
Density is about one-third of steel, making it suitable for weight-sensitive structures.
Good Corrosion Resistance
Naturally forms an oxide layer, performing well in atmospheric and mildly corrosive environments without additional coating.
Excellent Formability
Easily bent, rolled, stamped, and profiled, making it ideal for coil-based continuous processing.
Stable Mechanical Properties
Provides sufficient strength for non-structural applications while remaining easy to fabricate.
Cost-Effective Alloy
Lower cost compared with high-strength aluminum alloys and stainless steel.
Common Specifications
Thickness: 0.2 mm – 6.0 mm
Width: 100 mm – 2600 mm
Inner Diameter (ID): 508 mm / 610 mm
Surface: Mill finish, coated, anodized, embossed
Edge: Mill edge or slit edge
Typical Chemical Composition of 3003 Aluminum (wt%)
| Element | Content (%) |
|---|---|
| Aluminum (Al) | ≥ 96.7 |
| Manganese (Mn) | 1.0 – 1.5 |
| Silicon (Si) | ≤ 0.60 |
| Iron (Fe) | ≤ 0.70 |
| Copper (Cu) | 0.05 – 0.20 |
| Zinc (Zn) | ≤ 0.10 |
| Others | ≤ 0.15 |
Mechanical Properties (Typical Range)
| Property | Typical Value |
|---|---|
| Tensile Strength | 110 – 285 MPa |
| Yield Strength | 40 – 145 MPa |
| Elongation | 10% – 35% |
| Density | ~2.73 g/cm³ |
| Melting Point | ~655 °C |
*Mechanical properties vary depending on temper.
Temper Conditions & Their Practical Meaning
3003 aluminum coil is supplied mainly in O and H tempers:
O (Annealed):
Maximum ductility, suitable for deep drawing and complex forming.
H12 / H14 / H16 / H18:
Increasing strength achieved through cold working, used when higher rigidity is required.
3003 aluminum cannot be strengthened by heat treatment; strength adjustment relies on cold work.
Processing Characteristics of 3003 Aluminum Coil
Cold Rolling Compatibility
Suitable for continuous rolling, slitting, and leveling lines.
Weldability
Can be welded using common aluminum welding methods.
Surface Treatment Adaptability
Compatible with coating, anodizing, embossing, and laminating processes.
Dimensional Stability
Good flatness after processing, suitable for sheet conversion.
Typical Applications of 3003 Aluminum Coil
3003 aluminum coil is widely used in:
Roofing and wall cladding systems
Aluminum composite panels (ACP)
Heat exchanger fins and components
HVAC ducting and insulation jacketing
Packaging and container components
General sheet metal fabrication
3003 Aluminum Coil vs Other Common Materials
vs Carbon Steel:
Lighter weight, better corrosion resistance, easier forming.
vs Stainless Steel:
Lower strength and corrosion resistance, but significantly lower cost and weight.
vs 5052 Aluminum:
3003 offers better formability, while 5052 provides higher strength and marine resistance.
FAQ – 3003 Aluminum Coil
Q1: Is 3003 aluminum coil suitable for outdoor use?
Yes, it performs well in outdoor and atmospheric environments.
Q2: Can 3003 aluminum coil be anodized?
Yes, but appearance may vary compared with 6xxx series alloys.
Q3: Is 3003 aluminum coil food safe?
It is commonly used in food-related applications when appropriate surface treatment is applied.
Q4: What is the most common temper for 3003 aluminum coil?
H14 is widely used due to its balance of strength and formability.
3004 Aluminum Coil is a widely used Al-Mn-Mg alloy aluminum coil, offering higher strength than 3003 aluminum while maintaining excellent formability and corrosion resistance. It is especially suitable for applications requiring good deep-drawing performance, moderate strength, and long-term durability in atmospheric environments.
Due to its balanced mechanical properties and processing performance, 3004 aluminum coil is commonly used in construction, packaging, transportation, and industrial equipment.
Specifications
| Item | Specification |
|---|---|
| Alloy | 3004 |
| Form | Aluminum Coil |
| Thickness | 0.2 – 10.0 mm |
| Width | 100 – 2650 mm |
| Length | Coil form or cut-to-length |
| Surface Finish | Mill finish, coated, anodized |
| Standards | ASTM, EN, JIS, GB |
| Processing | Cold rolled |
| Customization | Size, temper, surface treatment available |
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance |
| Magnesium (Mg) | 0.8 – 1.3 |
| Manganese (Mn) | 1.0 – 1.5 |
| Silicon (Si) | ≤ 0.30 |
| Iron (Fe) | ≤ 0.70 |
| Copper (Cu) | ≤ 0.25 |
| Zinc (Zn) | ≤ 0.25 |
| Others | ≤ 0.15 |
Mechanical Properties (Typical) Mechanical properties vary depending on temper.
| Property | Typical Range |
|---|---|
| Tensile Strength | 150 – 270 MPa |
| Yield Strength | ≥ 110 MPa |
| Elongation | 6 – 20% |
| Hardening Method | Cold working |
Physical Properties
Density: 2.70 g/cm³
Melting Point: 629 – 654 °C
Thermal Conductivity: ~160 W/m·K
Electrical Conductivity: ~42% IACS
Coefficient of Thermal Expansion: 23.2 ×10⁻⁶ /K
Temper Options
Commonly supplied tempers include:
O – Annealed (excellent formability)
H12 / H14 / H16 / H18 – Strain hardened
H22 / H24 / H26 / H28 – Strain hardened and partially annealed
Custom tempers are available upon request.
Key Features & Advantages
Higher strength than 3003 aluminum coil
Excellent corrosion resistance in atmospheric environments
Good formability for bending, stamping, and deep drawing
Excellent weldability (MIG / TIG welding supported)
Suitable for color coating and surface treatments
Cost-effective solution for medium-strength applications
Note: 3004 aluminum alloy cannot be strengthened by heat treatment; strength is achieved through cold working.
Typical Applications
Construction & Architecture
Roofing sheets ,Wall panels,Curtain walls,Shutters and ceiling systems
Packaging Industry
Beverage can bodies, Food containers, Aluminum packaging materials
Industrial Applications
Storage tanks, Chemical containers, Heat exchanger components, Lighting fixtures and housings
Transportation
Vehicle panels, Lightweight structural parts
Comparison with Other Alloys
3004 vs 3003:
3004 provides higher strength while maintaining similar corrosion resistance and formability.
3004 vs 5052:
5052 offers higher strength and marine-grade corrosion resistance, while 3004 is more economical and easier to form.
FAQ
1.What is 3004 aluminum coil used for?
3004 aluminum coil is widely used in construction materials, beverage can bodies, roofing sheets, wall panels, storage tanks, and industrial containers, where moderate strength and good formability are required.
2.What is the difference between 3003 and 3004 aluminum coil?
Compared with 3003 aluminum coil, 3004 contains magnesium, which provides higher strength and better performance for deep drawing applications, while maintaining similar corrosion resistance.
3.Is 3004 aluminum coil corrosion resistant?
Yes. 3004 aluminum coil has excellent resistance to atmospheric corrosion and performs well in humid and outdoor environments, making it suitable for long-term use in construction and industrial applications.
4.Can 3004 aluminum coil be heat treated?
No. 3004 aluminum alloy is not heat-treatable. Its strength is improved through cold working and strain hardening, such as H14 or H18 temper.
5.Is 3004 aluminum coil suitable for deep drawing?
Yes. 3004 aluminum coil has good deep-drawing performance, which is why it is commonly used for beverage can bodies and packaging materials.
6.What tempers are available for 3004 aluminum coil?
Common tempers include O, H12, H14, H16, H18, H22, and H24. Custom tempers can also be supplied based on customer requirements.
7.Can 3004 aluminum coil be welded?
Yes. 3004 aluminum coil offers good weldability and can be welded using MIG or TIG welding methods commonly used in aluminum fabrication.
8.What surface finishes are available?
3004 aluminum coil can be supplied with mill finish, color coating (PE / PVDF), anodized finish, or other customized surface treatments depending on application needs.
9.What standards does 3004 aluminum coil comply with?
3004 aluminum coil can be produced according to ASTM, EN, JIS, and GB standards, ensuring compatibility with international projects.
10.Is 3004 aluminum coil suitable for outdoor use?
Yes. Thanks to its corrosion resistance and stable mechanical properties, 3004 aluminum coil is suitable for outdoor and architectural applications, including roofing and wall panels.
3005 Aluminum Coil is a non-heat-treatable Al-Mn alloy with moderate strength, excellent corrosion resistance, and good formability. Compared with 3003 aluminum, 3005 offers slightly higher strength while maintaining similar processing performance, making it a cost-effective solution for architectural and industrial applications.
3005 aluminum coil is widely used in building construction, roofing systems, wall panels, insulation materials, and general fabrication, especially where durability and surface quality are important.
Specifications
| Item | Specification |
|---|---|
| Alloy | 3005 |
| Form | Aluminum Coil |
| Thickness | 0.2 – 8.0 mm |
| Width | 100 – 2650 mm |
| Length | Coil form or cut-to-length |
| Surface Finish | Mill finish, coated, embossed |
| Standards | ASTM, EN, JIS, GB |
| Processing | Cold rolled |
| Customization | Size, temper, surface treatment available |
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance |
| Manganese (Mn) | 1.0 – 1.5 |
| Silicon (Si) | ≤ 0.60 |
| Iron (Fe) | ≤ 0.70 |
| Copper (Cu) | ≤ 0.30 |
| Zinc (Zn) | ≤ 0.25 |
| Others | ≤ 0.15 |
Mechanical Properties (Typical) Mechanical properties vary depending on temper.
| Property | Typical Range |
|---|---|
| Tensile Strength | 145 – 195 MPa |
| Yield Strength | ≥ 125 MPa |
| Elongation | 6 – 20% |
| Hardening Method | Cold working |
Physical Properties
Density: 2.70 g/cm³
Melting Point: 643 – 657 °C
Thermal Conductivity: ~160 W/m·K
Electrical Conductivity: ~40% IACS
Coefficient of Thermal Expansion: 23.2 ×10⁻⁶ /K
Temper Options
Commonly supplied tempers include:
O – Annealed (maximum formability)
H12 / H14 / H16 / H18 – Strain hardened
H22 / H24 / H26 / H28 – Strain hardened and partially annealed
Custom tempers are available upon request.
Key Features & Advantages
Higher strength than 3003 aluminum coil
Excellent corrosion resistance in outdoor environments
Good formability for bending, stamping, and roll forming
Smooth surface, suitable for color coating
Lightweight and easy to fabricate
Cost-effective for architectural applications
Note: 3005 aluminum alloy cannot be strengthened by heat treatment. Strength is achieved through cold working.
Typical Applications
Construction & Architecture
Roofing sheets,Wall cladding panels, Ceiling systems, Shutters and blinds
Industrial Applications
Insulation jacketing, Equipment housings, Storage containers
Decorative Applications
Color-coated aluminum panels, Embossed aluminum sheets ,Interior and exterior decoration materials
Comparison with Other Alloys
3005 vs 3003:
3005 offers slightly higher strength while maintaining similar corrosion resistance and formability.
3005 vs 3004:
3004 provides higher strength due to magnesium content, while 3005 is more economical and widely used in architectural applications.
FAQ
1.What is 3005 aluminum coil used for?
3005 aluminum coil is commonly used for roofing sheets, wall panels, insulation jacketing, ceiling systems, and decorative building materials.
2.Is 3005 aluminum coil stronger than 3003?
Yes. 3005 aluminum coil offers slightly higher strength than 3003, while maintaining similar corrosion resistance and processing performance.
3.Can 3005 aluminum coil be heat treated?
No. 3005 aluminum alloy is not heat-treatable. Its strength is achieved through cold working processes.
4.Is 3005 aluminum coil suitable for outdoor use?
Yes. 3005 aluminum coil has excellent resistance to atmospheric corrosion, making it suitable for long-term outdoor applications.
5.What surface treatments are available for 3005 aluminum coil?
3005 aluminum coil can be supplied with mill finish, color coating (PE / PVDF), embossed finish, or other customized surface treatments.
6.What tempers are commonly supplied?
Common tempers include O, H14, H16, H18, H22, and H24, depending on strength and formability requirements.
7.Can 3005 aluminum coil be welded?
Yes. 3005 aluminum coil has good weldability and supports common aluminum welding methods such as MIG and TIG welding.
8.Which standards does 3005 aluminum coil meet?
3005 aluminum coil can be manufactured according to ASTM, EN, JIS, and GB standards.
9.How does 3005 compare with 5052 aluminum coil?
5052 aluminum coil offers higher strength and marine-grade corrosion resistance, while 3005 is more economical and easier to form for architectural applications.
10.Is 3005 aluminum coil suitable for color coating?
Yes. Thanks to its smooth surface and stable properties, 3005 aluminum coil is widely used as a base material for color-coated aluminum products.
We specialize in the supply of 304 stainless steel bars, including round, square, flat, and hexagonal bars, with consistent quality and stable mechanical performance.
Based on application requirements, we support customized size, length, and surface finish, ensuring precise material matching for machining, fabrication, and structural use.
By Manufacturing Process:
Hot rolled 304 stainless steel bar, Cold drawn 304 stainless steel bar
By Bar Shape:
304 round bar, 304 square bar, 304 flat bar, 304 hexagonal bar
Specifications
| Item | Description |
|---|---|
| Product Form | Bar |
| Diameter / Size | Round: 3–300 mm |
| Flat Bar | Width 10–150 mm, Thickness 3–50 mm |
| Length | 3000–6000 mm or customized |
| Surface Finish | Black, Pickled, Bright, Polished |
| Manufacturing Process | Hot rolled / Cold drawn |
| Straightness | According to standard or customized |
304 Stainless Steel Bar
304 stainless steel bar is a widely used austenitic chromium-nickel stainless steel, known for its excellent corrosion resistance, good mechanical properties, and overall material stability.
With balanced strength, ductility, and weldability, 304 stainless steel bar is suitable for structural, machining, and corrosion-resistant applications across multiple industries.
It is often selected where long-term durability and material reliability are required in both indoor and outdoor environments.
Mechanical Properties (Typical)
| Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|
| ≥ 515 | ≥ 205 | ≥ 40 | ≤ 201 |
Chemical Composition (Typical)
| C (%) | Cr (%) | Ni (%) | Mn (%) | Si (%) | P (%) | S (%) |
|---|---|---|---|---|---|---|
| ≤ 0.08 | 18.0 – 20.0 | 8.0 – 10.5 | ≤ 2.00 | ≤ 1.00 | ≤ 0.045 | ≤ 0.03 |
Heat Treatment of 304 Stainless Steel Bar
1、Solution Annealing
Temperature range: 1010–1120°C
Process: Rapid cooling in water or air after heating
Purpose: Restores corrosion resistance and ductility after cold working or welding
2、Stress Relieving
Applied after heavy machining or forming
Helps reduce residual stress and minimize distortion
3、Hardening
304 stainless steel cannot be hardened by heat treatment
Strength improvement is achieved through cold working only
4、Performance Balance
Proper heat treatment prevents sensitization and ensures stable performance in welded, machined, and pressure-bearing applications.
Features of 304 Stainless Steel Bar
Corrosion Resistance: Excellent resistance to oxidation and many chemical environments, suitable for long-term service.
Mechanical Balance: Provides a reliable balance of strength and ductility for machining and forming.
Weldability: Suitable for most welding processes without preheating.
Non-magnetic Property: Generally non-magnetic in annealed condition; slight magnetism may appear after cold working.
Material Stability: Maintains consistent performance across a wide temperature range.
Applications of 304 Stainless Steel Bar
Structural Components: frames, supports, anchors; recommended diameter: 10–80 mm.
Machinery Parts: shafts, fasteners, pins, and fittings; recommended cold drawn bars.
Food & Chemical Equipment: mixing shafts, connectors, processing components.
Architectural Applications: handrails, decorative structures, load-bearing elements.
General Fabrication: cutting, welding, machining, and forming operations.
FAQ – 304 Stainless Steel Bar
1、Is 304 stainless steel bar suitable for outdoor use?
Yes, it performs well in most outdoor environments except highly chloride-rich conditions.
2、Can 304 stainless steel bar be welded?
Yes, it has excellent weldability and usually does not require post-weld heat treatment.
3、Is 304 stainless steel bar magnetic?
It is non-magnetic in annealed condition but may become slightly magnetic after cold working.
4、What is the difference between 304 and 316 stainless steel bar?
316 offers improved corrosion resistance due to molybdenum addition, while 304 provides a more economical solution for general applications.
We specialize in the supply of a full range of 304 stainless steel coils and support customized processing services, accurately matching application requirements based on material performance and fabrication needs.
By Manufacturing Process:
Cold rolled 304 stainless steel coil, Hot rolled 304 stainless steel coil
By Surface Treatment Type:
304 Mirror Stainless Steel Coil (8K), 304 Brushed Stainless Steel Coil (Long / Short Grain), 304 Embossed Stainless Steel Coil, 304 Sandblasted Stainless Steel Coil
Specifications
| Item | Specification |
|---|---|
| Product Type | 304 Stainless Steel Coil |
| Manufacturing Process | Cold Rolled (CR), Hot Rolled (HR) |
| Thickness Range | Typically from thin gauge to medium thickness |
| Width | Standard mill width or custom slitting |
| Inner Diameter | Standard coil ID (e.g. 508 mm / 610 mm) |
| Coil Weight | As per mill standard or customer requirement |
| Surface Finish | 2B, BA, No.4, Polished |
| Edge Condition | Mill edge, slit edge |
| Supply Condition | Annealed and pickled |
| Processing Service | Slitting, cutting-to-length, leveling |
304 Stainless Steel Coil
304 stainless steel coil is a widely used austenitic stainless steel product known for its excellent corrosion resistance, good formability, and stable mechanical performance. It is commonly supplied in cold rolled or hot rolled condition and is suitable for further processing such as slitting, cutting, stamping, and forming.
Chemical Composition (Typical)
| Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) |
|---|---|---|---|---|---|---|---|
| 304 | ≤ 0.08 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 18.0 – 20.0 | 8.0 – 10.5 |
Mechanical Properties (Typical)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 304 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 201 |
Heat Treatment of 304 Stainless Steel Coil
1. Annealing (Solution Treatment)
Temperature range: 1010–1120°C
Process: Rapid cooling in water or air after heating
Purpose: Restores maximum corrosion resistance and ductility after cold rolling
2. Stress Relieving
Applied after heavy cold working or forming
Helps minimize residual stresses and maintain dimensional stability
3. Hardening
304 stainless steel coil cannot be hardened by heat treatment
Strength improvement is achieved only through cold working
4. Performance Balance
Proper heat treatment prevents chromium carbide precipitation and maintains resistance to intergranular corrosion.
Ensures stable performance during forming, welding, and subsequent fabrication.
Features of 304 Stainless Steel Coil
Corrosion Resistance:
Excellent resistance to atmospheric corrosion and a wide range of chemical environments.
Formability:
High ductility allows easy rolling, bending, stamping, and deep drawing.
Surface Quality:
Uniform surface finish suitable for decorative and precision applications.
Weldability:
Compatible with common welding processes without complex pre-treatment.
Processing Flexibility:
Ideal base material for sheet cutting, strip slitting, and component fabrication.
Applications of 304 Stainless Steel Coil
Sheet and Plate Processing:
cut-to-length sheets, laser cutting blanks; recommended: cold rolled coils.
Appliance Manufacturing:
refrigerators, washing machines, kitchen equipment panels; recommended: BA or 2B finish.
Construction and Decoration:
cladding panels, ceilings, trims; recommended: thin gauge coils.
Food and Chemical Industry:
processing equipment, tanks, containers; recommended: annealed coils.
Automotive and Machinery Parts:
formed components requiring corrosion resistance and strength; recommended: medium thickness coils.
FAQ – 304 Stainless Steel Coil
Q1: What is the difference between stainless steel coil and sheet?
Stainless steel coil is supplied in continuous rolled form and can be further processed into sheets or strips, offering higher processing flexibility.
Q2: Is 304 stainless steel coil suitable for deep drawing?
Yes. Its austenitic structure provides excellent ductility, making it suitable for deep drawing and complex forming.
Q3: Can 304 stainless steel coil be welded directly?
Yes. Standard welding methods can be used without special heat treatment when proper procedures are followed.
Q4: Does 304 stainless steel coil rust easily?
No. It provides excellent corrosion resistance in normal atmospheric and mild chemical environments.
We supply a full range of 304 stainless steel pipes and tubes with reliable quality and flexible customization. Available in a wide range of sizes, thicknesses, finishes, and processing options to meet both industrial and architectural needs.
Our 304 stainless steel tubes come in various specifications to suit structural, mechanical, sanitary, and general fabrication requirements.
Available in wall thicknesses from 0.5 mm to 30 mm, and in common outer diameters such as 1/2″, 3/4″, 1″, or custom cut-to-size upon request.
By Manufacturing Process: Cold Drawn 304 Stainless Steel Seamless Pipe, Hot Rolled 304 Stainless Steel Seamless Pipe, ERW 304 Stainless Steel Pipe, Welded 304 Stainless Steel Tube
By Surface Treatment Type: 304 Pickled Stainless Steel Pipe, 304 Bright Annealed Stainless Steel Tube (BA), 304 Polished Stainless Steel Pipe, 304 Mirror Stainless Steel Tube, 304 Brushed Stainless Steel Tube
| Parameter | Description |
|---|---|
| Grade | 304 Stainless Steel (AISI / ASTM / EN / Equivalent Available) |
| Outer Diameter | 6 mm – 630 mm (custom sizes available) |
| Wall Thickness | 0.5 mm – 30 mm (custom cut-to-size available) |
| Length | Standard lengths 6 m, 12 m or custom |
| Standard | ASTM A312, ASTM A554, EN 10217, JIS, GB, etc. |
| Surface Finish | Pickled, BA, Polished, Mirror, Brushed |
| Processing Services | Cutting, bending, end finishing, welding, threading |
| Packaging | Export-grade waterproof wrapping + wooden pallet |
| MOQ | Flexible – supports small orders and bulk supply |
Chemical Composition of 304 Stainless Steel (wt%)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
Mechanical Properties of 304 Stainless Steel Pipe / Tube
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2%) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 92 HRB |
| Density | ~7.93 g/cm³ |
| Melting Point | ~1400 – 1450 °C |
Heat Treatment of 304 Stainless Steel
304 stainless steel is an austenitic stainless steel and cannot be hardened by heat treatment. Heat treatment is mainly used to:
-
Solution Annealing: Heat to 1010 – 1120 °C, then rapidly cool (water quenching)
-
Stress Relief Annealing: Used to relieve work-hardening or welding stress
Features of 304 Stainless Steel Pipes / Tubes
-
Excellent Corrosion Resistance — Performs well in most environments, including outdoors and mildly corrosive atmospheres.
-
Superb Weldability — Compatible with TIG, MIG, arc welding, and other common methods.
-
Good Formability & Fabrication — Easy to form, bend, and machine.
-
Sanitary & Food-Grade Acceptability — Widely used where hygiene is required.
-
Wide Range of Surface Finishes — Available in pickled, BA, polished, mirror, and brushed finishes.
Typical Applications
304 stainless steel pipe and tube are widely used in:
-
Food processing and sanitary piping systems
-
Chemical and petrochemical equipment
-
Pharmaceutical manufacturing systems
-
Architectural structural tubing and handrails
-
Heat exchangers and machinery frames
-
Automotive and transportation components
304 Stainless Steel Pipe & Tube – FAQs
Q1: What is 304 stainless steel pipe?
304 stainless steel pipe is a corrosion-resistant tubular product commonly used for fluid conveyance, structural, and sanitary applications.
Q2: Is 304 stainless steel pipe food grade?
Yes, 304 stainless steel pipe is widely used in food and beverage processing due to its corrosion resistance and cleanability.
Q3: What is the difference between seamless and welded 304 stainless steel pipe?
Seamless tubes have no welded seam, offering higher pressure resistance; welded pipes are more cost-effective for less critical applications.
Q4: Can 304 stainless steel tube be welded?
Yes, 304 stainless steel tube has excellent weldability with common methods like TIG and MIG.
Q5: What sizes are available for 304 stainless steel pipe?
Available in diameters from 6 mm to 630 mm and thicknesses 0.5 mm – 30 mm, with custom sizes available upon request.
Q6: What surface finishes are offered for 304 stainless steel tubes?
Finishes include pickled, BA, polished, mirror, and brushed to meet industrial and decorative needs.
We specialize in the supply of a full range of 304 stainless steel plates and support customized relays, accurately matching your application needs based on core properties.
By Manufacturing Process: Cold rolled 304 stainless steel plate, Hot rolled 304 stainless steel plate
By Connection Type Surface treatment: 304 Mirror SS Sheet(8k),304 Brushed Stainless Steel Sheet(Long /Short Grain), 304 Embossed Stainless Steel Sheet,304 Sandblasted Stainless Steel Sheet
Standard Sizes of 304 Stainless Steel Sheet
| Item | Specification / Description |
| Material | 304 Stainless Steel |
| Standard | ASTM A240 / JIS G4305 |
| Thickness Range | 0.3 – 20 mm (Common: 0.3mm, 1mm, 2mm, 3mm, 5mm, 1/2 inch) |
| Width Range | 1000 – 2000 mm (Common: 1000, 1219, 1500) |
| Length Range | 2000 – 6000 mm (Customizable) Common sizes：4x8ft, 5x10ft |
| Surface Finish | 2B, BA, NO.4, NO.8, HL (Hairline), Mirror, Sandblasted, Etched, Embossed |
| Sheet Type |
Cold Rolled, Hot Rolled |
304 Stainless Steel Sheet
304 stainless steel is an austenitic stainless steel composed of 18–20% chromium (Cr) and 8–10.5% nickel (Ni), with small amounts of carbon (≤0.08%), manganese (≤2%), and silicon (≤1%). This composition provides excellent resistance to corrosion in air, fresh water, and many mild chemical solutions, as well as good tensile strength (520–750 MPa) and yield strength (205–310 MPa). It maintains ductility and formability across a wide temperature range.
Tip: Avoid prolonged exposure to chloride-rich environments (e.g., saltwater) to prevent localized corrosion.
304 Stainless Steel Sheet — Chemical Composition (%)
| C | Cr | Ni | Mn | Si | P | S | Fe |
| ≤0.08 | 18.0–20.0 | 8.0–10.5 | ≤2.0 | ≤1.0 | ≤0.045 | ≤0.03 | Balance |
304 Stainless Steel Sheet — Mechanical Properties
| Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) | Density (g/cm³) | Melting Point (°C) |
| 520–750 | ≥205 | ≥40 | ≤92 | 7.93 | 1400–1450 |
304 Stainless Steel Sheet — Surface Finish Options
| 2B | BA | No.4 | No.8 | HL (Hairline) | Sandblasted | Etched | Embossed |
| Smooth, matte, widely used | Bright annealed, mirror-like | Brushed, fine lines | Mirror polished, high reflectivity | Continuous hairline pattern | Rough matte finish | Patterned by chemical treatment | Raised decorative pattern |
Heat Treatment of 304 Stainless Steel
1. Annealing (Solution Treatment)
Temperature range: 1010–1120°C
Process: Rapid cooling in water or air after heating
Purpose: Restores maximum corrosion resistance and ductility
2. Stress Relieving
Applied after heavy machining or forming
Helps minimize residual stresses and distortion
3. Hardening
304 stainless steel cannot be hardened by heat treatment
Strength improvement is achieved only through cold working
4. Performance Balance
Proper heat treatment restores the chromium carbide balance, preventing sensitization and intergranular corrosion.
Ensures stable performance during welding, pressure vessel operation, and high-temperature service.
Features of 304 Stainless Steel Sheet
Corrosion Resistance: Excellent resistance to a wide range of atmospheric environments and many corrosive media, particularly effective against oxidation and mild chemical exposure.
Mechanical Properties: Provides a balance of high tensile strength and good ductility, allowing for reliable forming, bending, and deep drawing.
Weldability: Suitable for most welding techniques without requiring pre- or post-weld heat treatment, minimizing the risk of sensitization when properly handled.
Temperature Tolerance: Maintains structural stability up to ~870°C (1600°F) in intermittent service and ~925°C (1700°F) in continuous service.
Applications of 304 Stainless Steel Sheet
Kitchen Equipment : countertops, sinks, and work tables; recommended: 1/2 inch (12.7 mm) sheet.
Decorative Panels : wall cladding, ceiling panels, furniture surfaces; recommended: thin sheets, 0.5–1.0 mm.
Construction and Cladding : building facades, partitions, exterior panels; recommended: large sheets, 4x8 ft (1219x2438 mm) or 5x10 ft (1500x3000 mm).
Chemical and Food Industry : tanks, piping, processing equipment; recommended: 1–3 mm thickness.
Automotive and Machinery Parts : structural components requiring strength and corrosion resistance; recommended: 2–6 mm thickness.
304 Stainless Steel Sheet — FAQ
Q1: What is 304 stainless steel sheet made of?
A1: 304 stainless steel sheet is an austenitic stainless steel containing 18–20% chromium (Cr) and 8–10.5% nickel (Ni), with small amounts of carbon, manganese, and silicon. This composition ensures excellent corrosion resistance, ductility, and mechanical stability for 304 stainless steel sheets used in kitchen counters, decorative wall panels, and industrial 304 sheet applications.
Q2: What thicknesses are available for 304 stainless steel sheets?
A2: 304 stainless steel sheets are available in thicknesses ranging from 0.3 mm to 20 mm. Common long-tail options include 0.5 mm thin 304 stainless steel sheet for decorative panels, 1 mm 304 sheet for kitchen equipment, and 2–4 mm 304 stainless steel sheet for construction cladding and industrial use.
Q3: What sizes can I order for 304 stainless steel sheets?
A3: Standard widths range from 1000 mm to 1500 mm, and lengths from 2000 mm to 6000 mm. Popular long-tail sizes include 4x8 ft (1219x2438 mm) 304 stainless steel sheet for facades, 5x10 ft (1500x3000 mm) large 304 sheet for partitions, and custom large-size 304 stainless steel sheets for industrial applications.
Q4: What surface finishes are available for 304 stainless steel sheets?
A4: Available surface finishes include 2B smooth matte 304 sheet, BA bright annealed 304 stainless steel sheet, No.4 brushed finish, No.8 mirror finish, HL (hairline), sandblasted, etched, and embossed 304 sheets. These finishes are suitable for applications like kitchen counters, decorative panels, and industrial equipment.
Q5: Can 304 stainless steel sheets be cut, bent, or welded?
A5: Yes. 304 stainless steel sheets have excellent formability and can be cut, bent, deep drawn, or welded, including 1/2 inch 304 stainless steel sheet for kitchen counters and thin 304 sheets for decorative panels, without losing corrosion resistance. Cold working can further increase strength where needed.
Q6: How should 304 stainless steel sheets be maintained?
A6: Clean 304 stainless steel sheets regularly using mild detergent and water. Avoid prolonged exposure to chlorides or strong acids, especially for thin 304 stainless steel panels and kitchen equipment sheets, to maintain optimal corrosion resistance.
Q7: What are typical applications of 304 stainless steel sheets?
A7: Common applications include kitchen equipment (1/2 inch 304 sheet for countertops and sinks), decorative panels (thin 304 sheet for walls, ceilings, and furniture surfaces), construction and cladding (large 4x8 ft or 5x10 ft 304 sheet for facades and partitions), chemical and food processing industry (1–3 mm 304 sheet for tanks and piping), and machinery components (2–6 mm 304 stainless steel sheet for structural parts).
Q8: Can 304 stainless steel sheets be customized?
A8: Yes. Suppliers can provide custom thickness, width, length, and surface finish, such as thin 0.5–1 mm 304 sheet for decorative panels or large 4x8 ft 304 stainless steel sheet for construction cladding, to meet project or industrial requirements.
We specialize in the supply of 316 / 316L stainless steel bars, including round, square, flat, and hexagonal bars, featuring excellent corrosion resistance, consistent quality, and stable mechanical performance.
Based on application requirements, we support customized size, length, and surface finish, ensuring precise material matching for machining, fabrication, welding, and structural applications, especially in corrosive and marine environments.
By Manufacturing Process:
Hot rolled 316 / 316L stainless steel bar, Cold drawn 316 / 316L stainless steel bar
By Bar Shape:
316 / 316L round bar, 316 / 316L square bar, 316 / 316L flat bar, 316 / 316L hexagonal bar
Specifications
| Item | Description |
|---|---|
| Product Form | Stainless Steel Bar |
| Material | 316 / 316L Stainless Steel |
| Standard | ASTM A276 / A484 / A479 / EN 10088 / JIS G4303 (common) |
| Shapes | Round / Square / Flat / Hexagon |
| Diameter / Size | Round: 2mm – 500mm (typical range) |
| Flat Bar | Thickness: 2mm – 100mm; Width: up to 400mm (typical) |
| Length | 1–6 meters (or customized) |
| Surface Finish | Black / Bright / Peeled / Polished / Pickled |
| Manufacturing Process | Hot Rolled / Cold Drawn / Centerless Ground |
| Straightness | According to standard or customized |
316 / 316L Stainless Steel Bar
316 stainless steel bar is an austenitic alloy with added molybdenum, offering excellent corrosion resistance, particularly in chloride or marine environments. It is widely used in chemical, food processing, and coastal applications requiring high durability and hygiene. 316L stainless steel bar, with lower carbon content, provides better weldability and resistance to intergranular corrosion, making it suitable for welded structures and pressure-related parts.
Mechanical Properties (Typical)
| Property | 316 | 316L |
|---|---|---|
| Tensile Strength (MPa) | ≥ 515 | ≥ 485 |
| Yield Strength (MPa) | ≥ 205 | ≥ 170 |
| Elongation (%) | ≥ 40 | ≥ 40 |
| Hardness (HB) | ≤ 217 | ≤ 217 |
Chemical Composition (Typical)
| Element | 316 (%) | 316L (%) |
|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 16.0–18.0 | 16.0–18.0 |
| Nickel (Ni) | 10.0–14.0 | 10.0–14.0 |
| Molybdenum (Mo) | 2.0–3.0 | 2.0–3.0 |
| Iron (Fe) | Balance | Balance |
Heat Treatment
1.Solution Annealing
Heating at ~1010–1120°C followed by rapid cooling in water or air restores corrosion resistance and ductility after cold working or welding.
2.Stress Relieving
Applied after heavy forming or machining to reduce residual stresses.
3.Hardening
316 / 316L cannot be hardened by heat treatment; strength improvement is achieved through cold working.
Features
316 Stainless Steel Bar
Contains molybdenum (Mo), providing improved resistance to pitting and crevice corrosion compared with 304 stainless steel
Offers higher strength and good machinability, suitable for precision machining and mechanical components
Performs well in chloride-containing and mildly acidic environments
Suitable for applications where welding is limited or post-weld heat treatment can be applied if required
Maintains stable mechanical properties over a wide temperature range
316L Stainless Steel Bar
Lower carbon content significantly reduces the risk of intergranular corrosion after welding
Excellent weldability, suitable for welded structures without post-weld heat treatment
Provides reliable corrosion resistance in chemical processing, marine, and pressure-related applications
Preferred for fabrication and structural use where long-term corrosion resistance and joint integrity are critical
Maintains good ductility and toughness after welding and forming
Applications
316 / 316L stainless steel bars are widely used in applications requiring high corrosion resistance, good mechanical strength, and long-term reliability, particularly in environments exposed to chlorides, chemicals, or moisture.
Typical application areas include:
Chemical & Petrochemical Industry
Used for reactors, heat exchangers, piping components, shafts, and fasteners due to excellent resistance to acids, alkalis, and chemical media.
Marine & Offshore Engineering
Commonly applied in marine shafts, structural supports, fasteners, and offshore equipment exposed to seawater and salt spray.
Food Processing & Pharmaceutical Equipment
Suitable for food-grade machinery, processing lines, tanks, and sanitary components where corrosion resistance and hygiene are critical.
Medical & Sanitary Applications
Used in medical equipment components, surgical tools, and sanitary fittings requiring cleanability and corrosion resistance.
Machinery & Precision Machining
Widely used for valves, pumps, fittings, bolts, and precision machined parts requiring dimensional accuracy and stable performance.
316L stainless steel bar is especially recommended for welded structures, pressure vessels, and fabrication applications, as its low carbon content helps reduce the risk of intergranular corrosion after welding.
FAQ – 316 / 316L Stainless Steel Bar
1.What is the difference between 316 and 316L stainless steel bar?
316L has lower carbon content than 316, providing improved weldability and better resistance to intergranular corrosion, especially after welding.
2.Is 316L stainless steel bar better than 316?
In welded or pressure-bearing applications, 316L is often preferred due to its lower carbon and reduced sensitization.
3.Can 316 stainless steel bar be used in marine environments?
Yes. Both 316 and 316L stainless steel bars offer excellent corrosion resistance in marine and chloride-rich environments.
4.Is 316 stainless steel bar food grade?
Yes. Both grades are widely used in food processing and pharmaceutical industries due to corrosion resistance and hygiene performance.
5.What is the difference between 304 and 316 stainless steel bar?
316 contains molybdenum for enhanced corrosion resistance compared with 304, making 316 more suitable for harsh or chloride environments.
Specifications
| Parameter | Detail |
| Grades | 316 / 316L |
| Standard | ASTM A240 / A480, JIS G4304, EN 10088 |
| Thickness Range | 0.5 mm – 50 mm (customized) |
| Width | 1000 / 1219 / 1500 mm (customized available) |
| Length | 2000 / 2438 / 3000 mm or cut-to-length |
| Surface Finish | 2B, BA, No.4 (brushed), HL, 8K (mirror) |
| Edge Type | Mill edge / Slit edge |
| Form | Sheet / Plate / Cut pieces |
316/316L stainless steel plates
Both 316 and 316L stainless steel plates are austenitic stainless steels, with their core alloys being chromium (Cr ≥ 16%) and nickel (Ni ≥ 10%). The key difference between the two lies in their carbon content: 316 stainless steel has a carbon content of ≤ 0.08%, while 316L stainless steel (the "L" stands for "Low Carbon") has a carbon content of ≤ 0.03%. This carbon content difference is not only the core difference between the two, but also directly affects their intergranular corrosion resistance and weldability, providing a clear basis for selection in different application scenarios.
Chemical Composition (%)
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | Balance |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | Balance |
Mechanical Properties
| Property | 316 | 316L |
| Tensile Strength (MPa) | ≥515 | ≥485 |
| Yield Strength (MPa) | ≥205 | ≥170 |
| Elongation (%) | ≥40 | ≥40 |
| Hardness (HRB) | ≤95 | ≤95 |
Heat Treatment of 316 / 316L Stainless Steel Sheet
1. Annealing (Solution Treatment)
Temperature Range: 1010–1120°C
Process: Heat to the specified temperature, then rapidly cool in water or air.
Purpose: Restores full corrosion resistance and ductility by dissolving carbide precipitates and homogenizing the microstructure.
2. Stress Relieving
Application: Performed after heavy forming, bending, or machining operations.
Purpose: Reduces residual stress and minimizes distortion, maintaining dimensional accuracy for precision components.
3. Hardening
Note: 316 / 316L stainless steel cannot be hardened by heat treatment.
Alternative: Strength improvement can only be achieved through cold working, such as rolling or drawing.
4. Performance Balance
Proper heat treatment maintains the chromium-to-carbon balance, preventing sensitization and intergranular corrosion.
Ensures stable performance during welding, high-pressure vessel operation, and exposure to elevated temperatures or corrosive environments.
Features of 316/316L Stainless Steel Plates
- Corrosion Resistance They offer superior corrosion resistance (surpassing 304), withstanding atmospheric/humid coastal environments and dilute sulfuric/nitric acid. The 2%-3% molybdenum content resists chloride-induced corrosion (e.g., saltwater). 316L (C≤0.03%) further enhances post-weld intergranular corrosion resistance.
- Mechanical Properties Balances high strength and ductility: Tensile strength 515-750 MPa, yield strength 205-310 MPa (ensures load-bearing capacity); elongation ≥40% (enables forming, bending, deep drawing without cracking).
- Weldability Compatible with TIG/MIG/arc welding, no pre/post-weld heat treatment required for most cases. 316L’s low carbon minimizes welding sensitization, ideal for welded structures.
- Temperature Tolerance Maintains stability at up to 800°C (continuous service) and ~925°C (intermittent service), plus good low-temperature toughness (-196°C) for cryogenic applications.
Applications of 316 / 316L Stainless Steel Sheet
Marine & Offshore Equipment – Used for ship decks, seawater desalination tanks, and offshore platform structures.
Typically used in 6–12 mm thickness, offering excellent resistance to saltwater corrosion and sufficient load-bearing strength.
Medical & Pharmaceutical Industry – Ideal for surgical equipment housings, drug storage tanks, and sterile processing pipelines.
Commonly supplied in 1–3 mm thickness; 316L is preferred for its superior cleanliness and compliance with medical-grade hygiene standards.
Chemical & Petrochemical Industry – Applied in acid and alkali reactor linings, corrosion-resistant piping, and chemical storage tanks.
Recommended 3–8 mm thickness, capable of withstanding strong chemical and chloride corrosion.
High-End Food Processing – Suitable for dairy fermentation tanks, soy sauce brewing equipment, and seafood processing tables.
Typically 1.5–4 mm thickness, with 316L providing the best resistance to contamination and preventing impurity precipitation.
Coastal Construction & Decoration – Used in coastal building facades, outdoor sculptures, and spa or resort bathroom panels.
Decorative thin sheets (0.8–1.2 mm) are used for panels, while large-format sheets (4x8 ft / 1219x2438 mm or 5x10 ft / 1500x3000 mm) are ideal for facade cladding.
Industrial Machinery & Cryogenic Equipment – Suitable for low-temperature LNG storage components and high-temperature furnace linings.
Typically 4–10 mm thickness, maintaining mechanical stability from -196°C to 800°C.
316/316L Stainless Steel Sheet — FAQs
1. What is the difference between 316 and 316L stainless steel sheet?
316L contains lower carbon content (≤0.03%) compared to 316 (≤0.08%), which improves weldability and resistance to intergranular corrosion. 316L stainless steel sheet is often used in welded structures, chemical processing, and marine environments.
2. Is 316 stainless steel sheet magnetic?
Both 316 and 316L stainless steel sheets are non-magnetic in annealed condition. However, slight magnetism may appear after cold working or bending.
3. What thicknesses and sizes are available for 316/316L stainless steel sheet?
Common thicknesses include 0.5 mm, 1 mm, 2 mm, 3 mm, 6 mm, and 10 mm. Standard sizes are 4x8 ft (1219x2438 mm) and 5x10 ft (1500x3000 mm). Custom cutting and polishing are available.
4. Can 316L stainless steel sheet be used for food and medical equipment?
Yes. 316L is food-grade and medical-grade compliant, making it ideal for dairy tanks, kitchen counters, pharmaceutical vessels, and surgical instruments.
5. How corrosion-resistant is 316 stainless steel sheet in seawater?
316 and 316L offer excellent resistance to saltwater, chloride, and acid corrosion, making them suitable for marine structures, desalination systems, and coastal applications.
6. Can 316 stainless steel sheet be welded or formed easily?
Yes. Both grades have good weldability and formability. After welding, solution annealing is recommended for 316 to restore corrosion resistance; 316L usually does not require this step.
7. What is the surface finish of 316/316L stainless steel sheet?
Available finishes include 2B, BA (bright annealed), No.4 (brushed), HL (hairline), and mirror finish, depending on the application — decorative, industrial, or hygienic.
8. How does 316/316L stainless steel compare to 304 stainless steel?
316/316L contains molybdenum, giving it higher corrosion resistance, especially in chloride or acidic environments. 304 is more cost-effective but less durable in harsh conditions.
We specialize in the supply of a full range of 316 stainless steel coils and support customized processing services, accurately matching application requirements based on corrosion resistance, mechanical performance, and fabrication needs.
By Manufacturing Process:
Cold rolled 316 stainless steel coil, Hot rolled 316 stainless steel coil
By Surface Treatment Type:
316 Mirror Stainless Steel Coil (8K), 316 Brushed Stainless Steel Coil (Long / Short Grain), 316 Embossed Stainless Steel Coil, 316 Sandblasted Stainless Steel Coil
Specifications
| Item | Specification |
|---|---|
| Product Type | 316 Stainless Steel Coil |
| Manufacturing Process | Cold Rolled (CR), Hot Rolled (HR) |
| Thickness Range | Thin gauge to medium thickness |
| Width | Standard mill width or custom slitting |
| Inner Diameter | 508 mm / 610 mm (or customized) |
| Coil Weight | As per mill standard or customer requirement |
| Surface Finish | 2B, BA, No.4, Polished |
| Edge Condition | Mill edge, slit edge |
| Supply Condition | Annealed and pickled |
| Processing Service | Slitting, cutting-to-length, leveling |
Chemical Composition (Typical)
| Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|---|
| 316 | ≤ 0.08 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 16.0 – 18.0 | 10.0 – 14.0 | 2.0 – 3.0 |
Mechanical Properties (Typical)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 316 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 217 |
Heat Treatment of 316 Stainless Steel Coil
1. Annealing (Solution Treatment)
Temperature range: 1010–1120°C
Process: Rapid cooling in water or air after heating
Purpose: Restores corrosion resistance and ductility after cold rolling or forming
2. Stress Relieving
Applied after heavy cold working
Helps reduce residual stresses and maintain dimensional stability
3. Hardening
316 stainless steel coil cannot be hardened by heat treatment
Strength improvement is achieved only through cold working
4. Performance Balance
Proper heat treatment maintains molybdenum distribution, enhancing resistance to pitting and crevice corrosion.
Ensures stable performance in chloride-containing and aggressive environments.
Features of 316 Stainless Steel Coil
Corrosion Resistance:
Superior resistance to chlorides, seawater, and aggressive chemical environments due to molybdenum addition.
Mechanical Properties:
Stable strength with excellent ductility for forming and fabrication.
Surface Quality:
Consistent surface finish suitable for industrial, marine, and decorative applications.
Weldability:
Good weldability with standard processes, maintaining corrosion resistance in welded areas.
Long-Term Reliability:
Designed for demanding environments where higher corrosion resistance is required.
Applications of 316 Stainless Steel Coil
Marine and Coastal Equipment:
ship components, offshore structures, coastal installations; recommended: annealed coils.
Chemical and Petrochemical Industry:
tanks, pressure vessels, processing equipment; recommended: cold rolled coils.
Food and Pharmaceutical Industry:
processing equipment, clean-room components; recommended: 2B or BA finish.
Construction and Decoration:
exterior cladding, architectural panels; recommended: brushed or polished coils.
Industrial Fabrication:
formed components exposed to corrosive environments; recommended: medium thickness coils.
FAQ – 316 Stainless Steel Coil
Q1: What is the main difference between 316 and 304 stainless steel coil?
316 stainless steel coil contains molybdenum, providing significantly better resistance to chloride and chemical corrosion.
Q2: Is 316 stainless steel coil suitable for marine environments?
Yes. It is commonly used in marine and coastal applications due to its superior corrosion resistance.
Q3: Can 316 stainless steel coil be welded and formed easily?
Yes. It offers good weldability and formability when standard fabrication practices are followed.
Q4: Does 316 stainless steel coil require special heat treatment?
No special treatment beyond standard solution annealing is required to maintain its corrosion performance.
We supply 316 stainless steel pipes and tubes with stable quality and consistent performance. With enhanced corrosion resistance from molybdenum content, 316 stainless steel pipe is suitable for chemical, marine, food processing, and industrial piping systems.
316 stainless steel tubes are available in various sizes, wall thicknesses, and surface finishes to meet demanding industrial and structural requirements.
Available in wall thicknesses from 0.5 mm to 30 mm, with standard lengths or custom cut-to-size options.
By Manufacturing Process: Cold Drawn 316 Stainless Steel Seamless Pipe, Hot Rolled 316 Stainless Steel Seamless Pipe, ERW 316 Stainless Steel Pipe, Welded 316 Stainless Steel Tube
By Surface Treatment Type: 316 Pickled Stainless Steel Pipe, 316 Bright Annealed Stainless Steel Tube (BA), 316 Polished Stainless Steel Pipe, 316 Mirror Stainless Steel Tube, 316 Brushed Stainless Steel Tube
| Parameter | Description |
|---|---|
| Grade | 316 Stainless Steel (AISI / ASTM / EN Equivalent) |
| Outer Diameter | 6 mm – 630 mm |
| Wall Thickness | 0.5 mm – 30 mm |
| Length | 6 m, 12 m, or custom |
| Type | Seamless / Welded |
| Shape | Round, Square, Rectangular |
| Standard | ASTM A312, ASTM A213, ASTM A554, EN, JIS, GB |
| Surface Finish | Pickled, BA, Polished, Mirror, Brushed |
| Processing Services | Cutting, bending, end finishing |
| Packaging | Export-grade waterproof packing + wooden pallet |
| MOQ | Flexible |
Chemical Composition of 316 Stainless Steel (wt%)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
Mechanical Properties of 316 Stainless Steel Pipe / Tube
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2%) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 95 HRB |
| Density | ~8.0 g/cm³ |
| Melting Point | ~1370 – 1400 °C |
Heat Treatment of 316 Stainless Steel
316 stainless steel is an austenitic stainless steel and cannot be hardened by heat treatment. Heat treatment is mainly applied to improve corrosion resistance and restore ductility.
Solution Annealing: 1010 – 1120 °C, followed by rapid cooling
Stress Relief: Applied after cold forming or welding when required
Key Characteristics of 316 Stainless Steel Pipe / Tube
Excellent Corrosion Resistance
Molybdenum improves resistance to chlorides, acids, and marine environments.
Good Weldability
Suitable for TIG, MIG, and arc welding without major loss of corrosion resistance.
Stable Mechanical Properties
Maintains strength and toughness across a wide temperature range.
Good Formability
Easy to bend, cut, and fabricate for piping and structural systems.
Preferred for Harsh Environments
Widely used where 304 stainless steel is insufficient.
Typical Applications
316 stainless steel pipes and tubes are commonly used in:
Chemical and petrochemical processing systems
Marine and offshore piping
Food and beverage processing equipment
Pharmaceutical and sanitary pipelines
Heat exchangers and pressure vessels
Coastal and high-humidity architectural structures
FAQ – 316 Stainless Steel Pipe / Tube
Q1: What is 316 stainless steel pipe used for?
316 stainless steel pipe is used in corrosive environments such as chemical plants, marine systems, and food processing facilities.
Q2: What is the difference between 316 and 304 stainless steel pipe?
316 contains molybdenum, providing better resistance to chlorides and chemical corrosion than 304.
Q3: Is 316 stainless steel pipe suitable for marine use?
Yes, 316 stainless steel pipe is commonly used in marine and coastal environments.
Q4: Can 316 stainless steel tube be welded?
Yes, 316 stainless steel tube has good weldability using common welding methods.
Q5: Do you offer seamless and welded 316 stainless steel pipes?
Yes, both seamless and welded 316 stainless steel pipes are available.
Q6: Are custom sizes available for 316 stainless steel pipe?
Yes, custom diameters, wall thicknesses, and lengths are available upon request.
We supply a full range of 321 stainless steel sheets and plates with reliable quality and stable performance for high-temperature and welded applications. Our 321 stainless steel sheets are available in various thicknesses, widths, surface finishes, and processing options to meet industrial, mechanical, and fabrication requirements.
Specification — 321 Stainless Steel Sheet
| Item | Specification |
|---|---|
| Material Grade | 321 Stainless Steel |
| UNS No. | S32100 |
| EN Grade | 1.4541 |
| Standards | ASTM A240 / A480, EN 10088, JIS G4304 |
| Product Form | Sheet / Plate |
| Thickness | 0.3 mm – 50 mm |
| Width | 1000 mm, 1219 mm, 1500 mm, or Custom |
| Length | 2000 mm, 2438 mm, 3000 mm, or Custom |
| Surface Finish | 2B, BA, No.1, No.4, HL, Mirror |
| Condition | Annealed |
| Processing Service | Cutting, Slitting, Polishing |
| Application | High-temperature, Welded Structures, Industrial Fabrication |
321 Stainless Steel Sheet / Plate
321 stainless steel is a titanium-stabilized austenitic stainless steel based on 304 chemistry. The addition of titanium (Ti ≥ 5×C) effectively prevents chromium carbide precipitation, providing excellent resistance to intergranular corrosion, especially after welding or exposure to elevated temperatures.
Compared with 304 stainless steel, 321 stainless steel sheet offers superior high-temperature stability and improved post-weld corrosion resistance, making it suitable for service temperatures up to 800°C. Customized cutting, surface treatment, and thickness control are available to meet specific application needs.
Chemical Composition (Typical, %)
| Element | C | Si | Mn | P | S | Cr | Ni | Ti |
|---|---|---|---|---|---|---|---|---|
| 321 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.0–19.0 | 9.0–12.0 | ≥5×C |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
Heat Treatment of 321 Stainless Steel Sheet / Plate
1. Solution Annealing
Temperature range: 1040–1100 °C
Process: Heating followed by rapid cooling (water quenching or air cooling)
Purpose:
Dissolves carbides, restores austenitic structure, and ensures optimal corrosion resistance and ductility.
2. Stabilization Treatment (Optional)
Applied after solution annealing or welding for critical applications.
Helps stabilize titanium carbides and further improves resistance to intergranular corrosion in long-term high-temperature service.
3. Hardening
321 stainless steel cannot be hardened by heat treatment.
Mechanical strength is mainly influenced by cold working.
Note: Heat treatment for 321 stainless steel is primarily used to improve corrosion resistance and high-temperature stability, not for strength enhancement.
Features of 321 Stainless Steel Sheet / Plate
High-Temperature Resistance:
Maintains stable mechanical properties and corrosion resistance at elevated temperatures up to 800°C.
Intergranular Corrosion Resistance:
Titanium stabilization prevents chromium carbide precipitation, making it suitable for welded components without post-weld heat treatment.
Good Weldability:
Excellent weldability using standard stainless steel welding methods with minimal risk of weld decay.
Mechanical Stability:
Good strength, ductility, and dimensional stability for fabrication and forming processes.
Alternative to 304 for High-Temperature Use:
Offers better high-temperature performance than 304 while remaining more economical than 310S.
Applications of 321 Stainless Steel Sheet / Plate
High-Temperature Equipment:
Heat exchangers, furnace components, exhaust systems
Recommended: medium to thick plates
Welded Structures:
Pressure vessels, piping systems, expansion joints
Recommended: annealed sheets for welding
Aerospace & Automotive:
Exhaust manifolds, thermal shields, engine components
Recommended: precision-cut sheets
Chemical & Petrochemical Industry:
Reactors, processing equipment, structural linings
Recommended: corrosion-resistant surfaces
Power & Energy Industry:
Boilers, superheaters, high-temperature ducts
321 stainless steel sheets are especially suitable for applications involving welding and continuous exposure to elevated temperatures, where standard 304 stainless steel may fail.
FAQ – 321 Stainless Steel Sheet / Plate
Q1: What is the difference between 321 and 304 stainless steel sheet?
321 contains titanium, which improves resistance to intergranular corrosion and high-temperature stability compared to 304.
Q2: Is 321 stainless steel sheet suitable for welding?
Yes. 321 stainless steel is specifically designed for welded applications without the need for post-weld heat treatment in most cases.
Q3: Can 321 stainless steel sheet be used at high temperatures?
Yes. It performs well at temperatures up to approximately 800°C.
Q4: Can 321 stainless steel sheet be hardened by heat treatment?
No. Like other austenitic stainless steels, it cannot be hardened by heat treatment.
Q5: Is 321 stainless steel sheet magnetic?
No. It is generally non-magnetic in annealed condition; slight magnetism may occur after cold working.
We offer a wide range of stainless steel pipes, categorized as follows:
By Manufacturing Process: Seamless pipes / Welded pipes
By Connection Type: Threaded pipes / Flanged pipes / Grooved pipes
By Application & Function: Exhaust pipes / Perforated pipes / Coated pipes / Customized pipes
| Parameter | Range / Options |
| Grade | 1.4512, SUS 409 steel pipes |
| Outer Diameter (OD) | 6 mm – 2,000 mm (1/8” – 80”), customizable |
| Wall Thickness | 0.5 mm – 50 mm (SCH 5 to SCH XXS), customizable |
| Length | 1 m – 12 m standard, cut-to-length/customizable |
| Shape | Round / Square / Rectangular / Oval, customizable |
| Manufacturing | Seamless / Welded (ERW, LSAW, SSAW) |
| Connection Type | Plain end / Beveled end / Threaded / Flanged / Grooved |
| Surface Finish | Pickled / Polished (180–600 grit) / Brushed / Coated |
| Standards | ASTM A312 / A213 / A269 / A554 / EN / JIS / DIN |
409 Stainless Steel Pipe
409 stainless steel pipe is a ferritic stainless steel product that offers good oxidation and corrosion resistance, especially in high-temperature environments. It has lower chromium content than 304 or 316, which makes it more economical, while still providing adequate durability. With good weldability and thermal stability, 409 stainless steel pipe is widely used in automotive exhaust systems, heat exchangers, and other applications where moderate corrosion resistance and excellent heat resistance are required.
409 Stainless Steel Pipe – Chemical Composition (%)
| Element | C | Mn | Si | Cr | Ni | P | S | Fe |
|---|---|---|---|---|---|---|---|---|
| Typical Value | ≤0.08 | 0.5–1.0 | 0.5–1.0 | 10.5–11.75 | 0.5–0.75 | ≤0.04 | ≤0.03 | Balance |
409 Stainless Steel Pipe – Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) | Density (g/cm³) | Thermal Conductivity (W/m·K) | Melting Point (°C) |
|---|---|---|---|---|---|---|---|
| Typical Value | 450–550 | ≥205 | ≥22 | ≤95 | 7.70 | 25 | 1425–1510 |
Hot Processing
Seamless Pipes: Hot piercing + multiple mandrel mill or rotary piercing steps.
Welded Pipes: Plate is rolled into a cylinder, welded, and then sized/straightened.
Features:
Seamless pipes are axially stretched from the billet, with strict control of wall thickness and diameter.
Heat processing of pipes requires extra attention to roundness and uniform wall thickness.
Welded pipes need careful control of weld seam position and stress in the heat-affected zone.
Stress Characteristics:
The circular cross-section generates hoop and axial stresses during heating and cooling, which must be relieved by annealing.
Annealing: After hot rolling or welding, 409 stainless steel pipes are annealed at approximately 800–900°C to relieve internal stresses, improve ductility, and enhance corrosion resistance. The pipe is then cooled under controlled conditions to stabilize dimensions and shape.
Stress Relief Annealing: For formed or welded pipes, a short low-temperature anneal below 400–450°C is often applied to remove residual stresses caused by welding or bending.
Notes:
Annealing is essential for 409 ferritic stainless steel due to its lower ductility and corrosion resistance.
Processes such as solution treatment, precipitation hardening, or high-temperature tempering are not applicable to 409 stainless steel pipes.
Features of 409 Stainless Steel Pipe
Ferritic Structure: 409 stainless steel has a ferritic crystal structure, providing moderate strength and good resistance to oxidation at high temperatures.
Corrosion Resistance: Suitable for mildly corrosive environments, such as automotive exhaust systems; less resistant than austenitic grades like 304 or 316.
Heat and Oxidation Resistance: Maintains shape and strength at elevated temperatures, making it ideal for exhaust and high-temperature applications.
Formability: Good for rolling, bending, and welding, though ductility is lower than austenitic stainless steels.
Cost-Effective: Provides a balance of mechanical properties, heat resistance, and corrosion resistance at a lower cost compared with higher-grade stainless steels.
We specialize in the supply of 430 stainless steel bars, including round, square, flat, and hexagonal bars, offering consistent quality and stable mechanical performance.
Based on application requirements, we support customized size, length, and surface finish, ensuring precise material matching for machining, fabrication, and structural use.
By Manufacturing Process:
Hot rolled 430 stainless steel bar, Cold drawn 430 stainless steel bar
By Bar Shape:
430 round bar, 430 square bar, 430 flat bar, 430 hexagonal bar
Specifications
| Item | Description |
|---|---|
| Product Form | Stainless Steel Bar |
| Material | 430 Stainless Steel |
| Standard | ASTM A276 / ASTM A479 / EN 10088 / JIS G4303 |
| Shapes | Round / Square / Flat / Hexagonal |
| Diameter / Size | Round bar: 3mm – 500mm (typical) |
| Length | 3–6 meters or customized |
| Surface Finish | Black / Bright / Polished / Peeled |
| Manufacturing Process | Hot Rolled / Cold Drawn |
430 Stainless Steel Bar
430 stainless steel is a ferritic stainless steel primarily alloyed with chromium, offering good corrosion resistance in mildly corrosive environments and excellent resistance to stress corrosion cracking. Typical chemical composition includes 16.0–18.0% Cr, ≤ 0.12% C, with no intentional nickel addition, making it a cost-effective alternative to austenitic stainless steels.
Due to its ferritic structure, 430 stainless steel exhibits good formability, moderate strength, and excellent thermal conductivity, along with stable performance under cyclic heating conditions. It also provides good polishability, making it suitable for applications where surface appearance is important.
Chemical Composition (%)
| Grade | C | Si | Mn | P | S | Cr | Ni | Fe |
|---|---|---|---|---|---|---|---|---|
| 430 | ≤0.12 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.0–18.0 | ≤0.75 | Balance |
Mechanical Properties (Typical)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness |
|---|---|---|---|---|
| 430 | ≥450 | ≥205 | ≥22 | ≤183 HB |
Heat Treatment
Annealing: 815°C – 900°C, followed by air cooling
430 stainless steel bar cannot be hardened by heat treatment
Strength and hardness can be improved through cold working
Stress relieving may be applied after machining or forming to improve dimensional stability
Features of 430 Stainless Steel Bar
Good corrosion resistance in mild atmospheric and indoor environments
Better resistance to stress corrosion cracking compared with austenitic stainless steels
Lower thermal expansion provides good dimensional stability
Magnetic properties suitable for specific industrial requirements
Cost-effective alternative to nickel-containing stainless steel grades
Good formability and machinability for general fabrication and machining
Applications
430 stainless steel bars are widely used in applications where moderate corrosion resistance, dimensional stability, and cost efficiency are required.
Typical application areas include:
Automotive trim and decorative components
Household appliances and kitchen equipment parts
Industrial brackets, shafts, and support components
Fasteners, fittings, and general machined parts
Architectural and decorative applications
FAQ
Q1: Is 430 stainless steel bar magnetic?
Yes. 430 stainless steel bar is ferritic and naturally magnetic.
Q2: What is the difference between 430 and 316 stainless steel bar?
430 offers lower cost and good performance in mild environments, while 316 provides superior corrosion resistance in aggressive and marine environments.
Q3: Can 430 stainless steel bar be used outdoors?
It can be used in mild outdoor conditions but is not recommended for marine or highly corrosive environments.
Q4: Is 430 stainless steel bar suitable for food-related applications?
430 is commonly used for food-contact components in dry or low-corrosion environments, but not for acidic or chloride-rich processing conditions.
Q5: Can 430 stainless steel bar be welded?
430 stainless steel bar can be welded with proper procedures; post-weld heat treatment is often recommended to improve ductility.