ASTM A240 321 Stainless Steel Plate 3.0 - 80.0mm TISCO POSCO Supplier
Price:
US $2.37-3.19 / kg
MOQ:
40 kg
Delivery Time:
Negotiable
Product Description
ASTM A240 321/321H Stainless Steel Plate Specifications
GMS supplies high-quality ASTM A240 321/321H stainless steel plates from leading manufacturers including TISCO and POSCO, available in thicknesses from 3.0mm to 80.0mm.
Product Specifications
| 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 |
Material Characteristics: 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.
321H Grade: A modification of 321 with higher carbon content for improved high-temperature strength.
Welding Note: Titanium doesn't transfer well across high-temperature arcs, so grade 321 is not recommended as a welding consumable. Grade 347 (niobium-stabilized) is the standard consumable for welding 321. Grade 321 has excellent forming and welding characteristics but doesn't polish well for decorative applications.
Chemical Composition
Table 1: Composition Ranges for 321-Grade Stainless Steel
| Grade | C | Mn | Si | P | S | Cr | Ni | Other |
|---|---|---|---|---|---|---|---|---|
| 321 | 0.08 max | 2.00 max | 0.75 max | 0.045 max | 0.030 max | 17.0-19.0 | 9.0-12.0 | Ti=5(C+N) min, 0.70 max |
| 321H | 0.04-0.10 | 2.00 max | 0.75 max | 0.045 max | 0.030 max | 17.0-19.0 | 9.0-12.0 | Ti=4(C+N) min, 0.70 max |
Mechanical Properties
Table 2: Mechanical Properties of 321-Grade Stainless Steel
| 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 |
International Grade Specifications
Table 4: Grade Specifications for 321 Stainless Steel
| Grade | UNS No | British BS | Euronorm No | Japanese JIS |
|---|---|---|---|---|
| 321 | S32100 | 321S31 | 1.4541 | SUS 321 |
| 321H | S32109 | 321S51 | 1.4878 | SUS 321H |
Typical Applications
- Aircraft piston engine manifolds
- Expansion joints
- Firearms production
- Thermal oxidizers
- Refinery equipment
- High temperature chemical process equipment
Product Gallery
About GMS Company
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, with customers nationwide.
Main Products: 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 standing stock of over 3000 tons and can arrange special orders for unique steel types and specifications. Our value-added services include embossing (domestic and Japanese), mirror polishing, plate polishing, grinding, flattening, and cutting (laser, water jet, plasma) to meet diverse customer requirements.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben