321 Stainless Steel Coil
- 321 Stainless Steel Coil
Walmay Metal’s 321 Stainless Steel Coils are austenitic stainless steel products designed to withstand high temperatures and resist intergranular corrosion. Stabilized with titanium, 321 stainless steel offers superior performance in demanding applications, including aerospace, chemical processing, and heat exchangers.
321 Stainless Steel Coil Product Description
Material: | 321 Stainless Steel Coil | Surface finish: | Mill finish |
Color: | Natural Color | Standard: | ASTM, AISI,JIS, GB, DIN, EN |
MOQ: | 1 Ton | Thickness: | 0.2mm-3mm or 2.2mm-12mm as required |
Technique: | Cold Rolled/ Hot Rolled | Length: | as your requirements |
Certification: | ISO, SGS,BV | Width: | 1000mm/1219mm/1240mm/1250mm/ 1500mm or as required |
CHEMICAL COMPOSITION(%) for 321 Stainless Steel Coil
Grade | C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | Other |
---|---|---|---|---|---|---|---|---|---|---|---|
201 | ≤0.15 | 16.00-18.00 | 3.50-5.50 | 5.50-7.50 | ≤0.060 | ≤0.030 | – | ≤1.00 | – | ≤0.25 | – |
202 | ≤0.15 | 17.00-19.00 | 4.00-5.00 | 7.8-10.00 | ≤0.060 | ≤0.030 | – | ≤0.50 | – | 0.030 | – |
304 | ≤0.07 | 17.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | – | – | – |
304l | ≤0.030 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | – | – | – |
309s | ≤0.080 | 18.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | – | – | – |
310s | ≤0.080 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | – | – | – |
316 | ≤0.030 | 16.00-26.00 | 10.00-14.00 | ≤2.00 | ≤0.035 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | – | – |
316l | ≤0.030 | 16.00-26.00 | 10.00-14.00 | ≤2.00 | ≤0.035 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | – | – |
317 | ≤0.12 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.035 | ≤0.030 | 3.00-4.00 | ≤1.00 | – | – | – |
321 | ≤0.12 | 17.00-19.00 | 8.00-11.00 | ≤2.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | – | – | Ti5(C%- 0.02)~ 0.08 |
347 | ≤0.08 | 17.00-19.00 | 9.00-13.00 | ≤2.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | – | – | Nb≥10*C% |
430 | ≤0.12 | 16.00-18.00 | ≤0.60% | ≤1.25 | ≤0.035 | ≤0.030 | – | ≤0.75 | – | – | – |
410 | ≤0.15 | 11.5~13.50 | ≤0.75 | ≤1.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | – | – | – |
630 | ≤0.07 | 15.5-17.5 | 6.50-7.50 | ≤1.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | 3.00-5.00 | – | Nb0,15-0.45 |
Product packaging and loading
For 321 Stainless Steel Coil packaging: Standard packing for export with waterproof protection.
Other packaging can be customized according to customer requirements.
Port:Shanghai port or Qingdao port
Lead Time:
Quantity (Tons) | 1-5 | 6-20 | 21-100 | >100 |
Est.Time (days) | 3 | 15 | 30 | To be negotiated |
321 Stainless Steel Coil Application
- Aerospace Industry: Ideal for engine components, exhaust systems, and other high-temperature applications.
- Chemical Processing: Used in storage tanks, piping, and equipment exposed to corrosive chemicals and elevated temperatures.
- Heat Exchangers: Perfect for heat exchanger systems and boilers requiring thermal resistance.
321
STAINLESS COIL
Why Choose Walmay Metal for 321 Stainless Steel Coils?

Walmay Metal is a trusted provider of premium 321 stainless steel coils, offering unmatched quality, precision, and customer support. Our products are designed to meet the highest industry standards, ensuring durability and efficiency for your most demanding applications.
Contact Walmay Metal today for a quote or to discuss your project needs. Let us help you find the perfect 321 stainless steel coil solution for your industrial or commercial requirements.
ISO 9001 certification
ROHS compliance
ASTM/EN standards

Related Products
If you have any questions, please use the form below to send us a message or contact Walmay Metal’s office location.


