Sort by:
6 products
6 products
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.
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.
Specification
| Product Name | stainless steel corrugated sheet |
| Thickness | 0.3 mm – 3.0 mm (custom thickness available) |
| Width | 600 mm – 1250 mm (standard), up to 1500 mm (custom) |
| Length | 1 m – 6 m (standard), up to 12 m (custom) |
| Corrugation Type | Trapezoidal, Sinusoidal, V-Beam (custom patterns on request) |
| Material Grades | 304, 316, 430, 201, 441, Duplex 2205 (optional galvanized or coated) |
| Surface Finish | Mill Finish, Embossed, Coated (PE/PVC), Brushed, Polished |
| Applications | Roofing, Cladding, Decoration, Transportation, Industrial, Agriculture |
| Standards | ASTM A240, EN 10088-2, JIS G4304, GB/T 4237 |
| Tolerances | Thickness: ±0.02 mm – ±0.2 mm; Width/Length: ±5 mm – ±20 mm |
| Packaging | Waterproof Film, Wooden Pallets, or Customized |
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.
We specialize in the supply of 430 stainless steel sheet and plate, offering stable ferritic stainless steel solutions for decorative, architectural, and general industrial applications.
Based on core material properties, we support custom thickness, size, and surface finish matching to meet different processing and usage requirements.
By Manufacturing Process:
Cold rolled 430 stainless steel sheet, Hot rolled 430 stainless steel plate
By Surface Treatment Type:
430 Mirror Stainless Steel Sheet (8K), 430 Brushed Stainless Steel Sheet (Long / Short Grain), 430 Embossed Stainless Steel Sheet, 430 Sandblasted Stainless Steel Sheet
Specifications
| Item | Description |
|---|---|
| Product Form | Sheet / Plate |
| Thickness | 0.3 – 3.0 mm (cold rolled); 3.0 – 50 mm (hot rolled) |
| Width | 1000 / 1219 / 1250 / 1500 mm |
| Length | 2000 / 2438 / 3000 mm or customized |
| Surface Finish | 2B, BA, No.4, Hairline, 8K Mirror, Embossed, Sandblasted |
| Edge | Mill edge / Slit edge |
| Surface Protection | PVC film (optional) |
430 stainless steel sheet
430 stainless steel sheet and plate is a ferritic chromium stainless steel containing approximately 16–18% chromium, offering a practical balance between corrosion resistance, formability, and cost efficiency.
It is widely used in decorative, architectural, and appliance applications where good surface quality, magnetic properties, and moderate corrosion resistance are required.
Compared with austenitic grades such as 304, 430 stainless steel provides lower material cost and stable performance in non-aggressive environments, making it a common choice for large-area sheet applications.
Mechanical Properties (Typical)
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| Typical Value | ≥ 450 | ≥ 205 | ≥ 22 | ≤ 183 |
Chemical Composition (Typical)
| C (%) | Cr (%) | Mn (%) | Si (%) | P (%) | S (%) | Ni (%) |
|---|---|---|---|---|---|---|
| ≤ 0.12 | 16.0 – 18.0 | ≤ 1.00 | ≤ 1.00 | ≤ 0.04 | ≤ 0.03 | ≤ 0.75 |
Heat Treatment of 430 Stainless Steel
1.Annealing
Temperature range: 815–900°C
Process: Heating followed by air cooling
Purpose: Improves ductility, relieves internal stress, and enhances formability
2.Stress Relieving
Applied after cold forming or machining
Helps reduce deformation risk during subsequent processing
3.Hardening
430 stainless steel cannot be hardened by heat treatment
Strength improvement relies mainly on cold working
4.Performance Balance
Proper annealing ensures stable ferritic structure, uniform surface quality, and consistent forming performance.
Features of 430 Stainless Steel Sheet / Plate
Corrosion Resistance: Good resistance to oxidation and mild corrosive environments; suitable for indoor and low-humidity applications.
Magnetic Property: Naturally magnetic due to ferritic structure, distinguishing it from austenitic grades such as 304.
Formability: Adequate formability for bending, cutting, and light stamping after annealing.
Cost Efficiency: Lower alloy content makes 430 more economical than nickel-containing stainless steels.
Surface Quality: Capable of achieving high-quality decorative finishes such as hairline and mirror.
Applications of 430 Stainless Steel Sheet / Plate
Decorative Panels: elevator interiors, wall panels, appliance housings; recommended thickness: 0.6–1.2 mm.
Kitchen & Household Appliances: backsplashes, oven panels, range hoods; recommended thickness: 0.8–1.5 mm.
Architectural Components: interior cladding, trims, partitions; recommended large sheets, 4×8 ft or 5×10 ft.
Automotive Decorative Parts: non-structural trims and covers; recommended thickness: 0.8–2.0 mm.
Industrial Panels: equipment covers and enclosures; recommended thickness: 2.0–6.0 mm.
FAQ – 430 Stainless Steel Sheet / Plate
Is 430 stainless steel suitable for outdoor use?
It can be used in mild outdoor environments but is not recommended for coastal or chloride-rich conditions.
Can 430 stainless steel sheet be welded?
Yes, but welding should be carefully controlled; post-weld annealing is recommended for critical applications.
Does 430 stainless steel rust easily?
Compared to carbon steel, corrosion resistance is much better, but it is lower than 304 or 316 stainless steel.
Is 430 stainless steel food safe?
It is commonly used in kitchen appliances, but prolonged exposure to acidic food environments should be avoided.
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.