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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 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 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 specialize in the supply of a full range of 430 stainless steel coils and support customized processing services, accurately matching application requirements based on corrosion resistance, magnetic properties, and fabrication needs.
By Manufacturing Process:
Cold rolled 430 stainless steel coil, Hot rolled 430 stainless steel coil
By Surface Treatment Type:
430 Mirror Stainless Steel Coil (8K), 430 Brushed Stainless Steel Coil (Long / Short Grain), 430 Embossed Stainless Steel Coil, 430 Sandblasted Stainless Steel Coil
Specifications
| Item | Specification |
|---|---|
| Product Type | 430 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 (%) |
|---|---|---|---|---|---|---|---|
| 430 | ≤ 0.12 | ≤ 1.00 | ≤ 1.00 | ≤ 0.040 | ≤ 0.030 | 16.0 – 18.0 | ≤ 0.75 |
Mechanical Properties (Typical)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 430 | ≥ 450 | ≥ 205 | ≥ 22 | ≤ 183 |
Heat Treatment of 430 Stainless Steel Coil
1. Annealing
Temperature range: 760–815°C
Process: Heating followed by air cooling
Purpose: Relieves cold working stress and improves ductility
2. Stress Relieving
Applied after cold rolling or forming
Helps improve dimensional stability
3. Hardening
430 stainless steel coil cannot be hardened by heat treatment
Mechanical properties depend on composition and forming process
4. Performance Stability
Proper annealing stabilizes the ferritic structure and improves consistency during forming and fabrication.
Features of 430 Stainless Steel Coil
Corrosion Resistance:
Good resistance to atmospheric corrosion and mild chemical environments.
Magnetic Property:
Magnetic in all conditions due to ferritic structure.
Formability:
Good formability for bending and general forming operations.
Surface Quality:
Uniform surface suitable for decorative and appliance applications.
Cost Advantage:
Lower alloy content provides a cost-effective alternative to austenitic grades.
Applications of 430 Stainless Steel Coil
Household Appliances:
refrigerators, ovens, dishwashers, appliance panels; recommended: BA or 2B finish.
Decorative Applications:
interior panels, trims, elevator panels; recommended: brushed or polished coils.
Automotive Components:
exhaust trims, heat shields; recommended: cold rolled coils.
General Fabrication:
formed parts where moderate corrosion resistance is sufficient.
Indoor Construction:
architectural details and non-structural components.
FAQ – 430 Stainless Steel Coil
Q1: What is the main difference between 430 and 304 stainless steel coil?
430 is a ferritic stainless steel with lower corrosion resistance and magnetic properties, while 304 is austenitic and non-magnetic.
Q2: Is 430 stainless steel coil suitable for outdoor use?
It is suitable for indoor or low-corrosion environments. For outdoor exposure, protective measures or higher grades are recommended.
Q3: Can 430 stainless steel coil be welded?
Yes, but post-weld heat treatment may be applied to improve weld zone performance.
Q4: Is 430 stainless steel coil magnetic?
Yes. It is magnetic in both annealed and cold-worked conditions.