ASTM A240 321 Stainless Steel Sheet Cold Rolled SS Plate 0.5 - 80.0mm Thickness
Price:
US $2.5-4.15 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
ASTM A240 321 Stainless Steel Plate Sheet 0.5 - 80.0mm
Product Specifications
| Product Type | 321 Stainless Steel Sheet, 321 Stainless Steel Plate |
|---|---|
| Specification | ASTM A240 / ASME SA240 |
| Dimensions | Cold rolled: 4ft×8ft (1219×2438mm) Hot rolled: 5ft×20ft, 6ft×20ft (1500×6000mm, 1800×6000mm, 2000×6000mm) |
| Thickness | 0.6 to 80 mm |
| Width | 1219mm, 1500mm, 1800mm, 2000mm |
| Length | 2m, 2.44m, 3m, 6m or as required |
| 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. |
| Our Services | Laser Cutting, bending, welding, polishing |
| 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 |
Grade 321 / 321H Stainless Steel Overview
321 stainless steel is a titanium stabilized grade designed for service in the 1000-1600°F temperature range. For optimal resistance to intergranular corrosion and polythionic acid stress corrosion cracking, a stabilizing treatment at 1550-1650°F followed by air cooling is recommended.
This grade is readily weldable by all common methods including submerged arc, using AWS ER347 bare wire and E347 covered electrodes. With a machinability rating of 45% relative to AISI B1112, it offers similar machining characteristics to 304 stainless steel.
Available Product Forms
Sheet, Plate, Coil, Strip, Wire, Pipe, Tube, Bar, Profile, Round, Flat, Square, Hexagonal
Specifications and Certifications
- Grade 321/321H
- ASTM A240, ASME SA240, BS EN 10028-7, BS EN 10088-2 and BS EN 10088-4
- EN 10088/2, EN 10088/4 and CE Marking
- NACE MR 0175/ISO 15156 Certification
Typical Applications
- Aircraft piston engine manifolds
- Expansion joints
- Firearms production
- Thermal oxidizers
- Refinery equipment
- High temperature chemical process equipment
Chemical Composition (wt%)
| Element | 321 |
|---|---|
| Carbon | 0.08 |
| Chromium | 17.0-19.0 |
| Nickel | 9.0-12.0 |
| Manganese | 2.00 |
| Silicon | 0.75 |
| Nitrogen | 0.10 |
| Phosphorus | 0.045 |
| Sulfur | 0.030 |
| Titanium | 5(C+N) min / 0.70 max |
Mechanical Properties
| Property | 321 |
|---|---|
| Yield Strength, min. (ksi) | 30 |
| Tensile Strength, min. (ksi) | 75 |
| Elongation, min. (%) | 40 |
| Hardness, max. (Rb) | 95 |
Alternative Grades Comparison
| Grade | Why it might be chosen instead of 321 |
|---|---|
| 304L | When resistance to intergranular corrosion is required, but not high-temperature strength |
| 3CR12 | For mild high-temperature environments up to about 600°C |
| 304H | For mild high-temperature environments up to about 800°C |
| 310 | For operating environments up to about 1100°C - too high for 321 or 321H |
| S30815 (253MA) | For operating environments up to about 1150°C - too high for 321 or 321H |
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben