ASME Standard Hot Rolled 321 Stainless Steel Sheet and Plate with 3.0mm - 100mm Thickness
| Product Type | 321 Stainless Steel Sheet, 321 Stainless Steel Plate |
|---|---|
| Specification | ASTM A240 / ASME SA240 |
| Dimensions | Cold rolled 321 Stainless Steel Sheet 4ft*8ft [1219*2438mm] Hot rolled 321 Stainless Steel Plate 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 Service | 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 |
321 stainless is a titanium stabilized grade commonly used for service in the 1000-1600°F temperature range. For service temperatures up to about 1600°F, a stabilizing treatment at 1550-1650°F, air cool, may be used to provide optimum resistance to intergranular corrosion and to polythionic acid stress corrosion cracking.
321 stainless is readily welded by all common methods including submerged arc. Appropriate weld fillers are AWS ER347 bare wire and E347 covered electrodes. 321 stainless is similar in machinability to 304 stainless steel. It has a machinability rating of 45% relative to AISI B1112.
Product Forms: Sheet, plate, Coil, Strip, wire, Pipe, Tube, Bar, Profile, Round, Flat, Square, Hexagonal
- 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
- Aircraft piston engine manifolds
- Expansion joints
- Firearms production
- Thermal oxidizers
- Refinery equipment
- High temperature chemical process equipment
| 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 |
* Maximum, unless range is indicated
| Property | 321 |
|---|---|
| Yield Strength, min. (ksi) | 30 |
| Tensile Strength, min. (ksi) | 75 |
| Elongation, min. (%) | 40 |
| Hardness, max. (Rb) | 95 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS |
|---|---|---|---|---|---|
| 321 | S32100 | 321S31 | 1.4541 | 2337 | SUS 321 |
| 321H | S32109 | 321S51 | 1.4878 | - | SUS 321H |
| 347 | S34700 | 347S31 | 1.4550 | 2338 | SUS 347 |
| Grade | Why it might be chosen instead of 321 |
|---|---|
| 304L | The requirement is for resistance to intergranular corrosion, not for high-temperature strength |
| 3CR12 | Only a mild "high temperature" environment is present… up to about 600 °C |
| 304H | Only a mild "high temperature" environment is present… up to about 800 °C |
| 310 | The temperature of the operating environment is up to about 1100 °C - too high for 321 or 321H |
| S30815 (253MA) | The temperature of the operating environment is up to about 1150 °C - too high for 321 or 321H |
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