Corrosion Resistant Cold Rolled 321 Stainless Steel Plate with Bright Surface Finish
| Product Type | 321 Stainless Steel Sheet, 321 Stainless Steel Plate |
|---|---|
| Specification | ASTM A240 / ASME SA240 JIS G4305 / EN 10088-2 / GB 24511 |
| Thickness | Cold rolled: 0.5-3.0 mm Hot rolled: 3.0-80.0 mm |
| Standard Size | Cold rolled: 1000×2000mm, 1219×2438mm Hot rolled: 1500×3000mm, 1500×6000mm, 1800×6000mm, 2000×6000mm |
| Finish | Satin, 2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), No.1 finish hot rolled, 1D, No.4, BA, 8K, hairline, brush, mirror, etc. |
| Brand | TISCO, BAOSTEEL, POSCO, JISCO, DONGTE |
| Forms / Shapes | Plate, Sheet, Coils, Foils, Strip, Flats, Clad Plate, Plain Sheet, Rolling Sheet, Rolling Plate, Flat Shim, Flat Sheet, Shim Sheet, Rolls, Blank (Circle), sheared, annealed, soft annealed, descaled, tread plate, Checker Plate |
| Other Trade Names | SS 321, SUS 321, Inox 321, DIN 1.4541, UNS S32100, AISI 321, SAE 321 Sheet |
| Our Services | Laser cutting, Fire cutting, bending, Surface polishing, PVC film cover |
Grades 321 and 347 are austenitic 18/8 steels (similar to Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades resist intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Grade 321 is ideal for applications up to 900°C, offering high strength, scaling resistance, phase stability, and subsequent aqueous corrosion resistance.
Grade 321H features higher carbon content for improved high-temperature strength. While 321 has excellent forming and welding characteristics, it is not recommended as a welding consumable due to titanium's poor transfer across high-temperature arcs. Grade 347 serves as the standard consumable for welding 321.
| Grade | C | Mn | Si | P | S | Cr | Ni | Other |
|---|---|---|---|---|---|---|---|---|
| 321 | ≤0.08 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 17.0-19.0 | 9.0-12.0 | Ti=5(C+N) min, 0.70 max |
| 321H | 0.04-0.10 | ≤2.00 | ≤0.75 | ≤0.045 | ≤0.030 | 17.0-19.0 | 9.0-12.0 | Ti=4(C+N) min, 0.70 max |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50 mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
|---|---|---|---|---|---|
| 321 | 515 | 205 | 40 | 95 | 217 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| Grade | UNS No | British BS | Euronorm No | Japanese JIS |
|---|---|---|---|---|
| 321 | S32100 | 321S31 | 1.4541 | SUS 321 |
| 321H | S32109 | 321S51 | 1.4878 | SUS 321H |
- Aircraft piston engine manifolds
- Expansion joints
- Firearms production
- Thermal oxidizers
- Refinery equipment
- High temperature chemical process equipment
GMS is a medium-sized professional company integrating wholesale sales and processing of stainless steel materials, providing customers with comprehensive services including sales, processing, and logistics distribution.
Our products serve numerous industries including nuclear power engineering, petrochemical, electric furnace, boiler, pressure vessel, electric heating equipment, textile, pharmaceutical, mechanical equipment, kitchen equipment, solar energy, and papermaking equipment.
Main products include: 321, 310s, 309S, 316L, 304, 316TI, 410S, 202, 201, 904L, 317L, 2205, 2304 duplex stainless steel, as well as 800H, 600H high nickel alloys. We maintain over 3000 tons of standing stock and can arrange special orders for unique requirements.
Additional services include embossing (domestic and Japanese), mirror polishing, plate polishing, grinding, flattening, and cutting (laser, water knife, plasma) to meet diverse customer needs.
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