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Heat Resistant Grade 321 Stainless Steel Plate ASTM A240 Alloy 321 Sheet
Product Details
| Shape | Flat | Technique | Cold Rolled |
|---|---|---|---|
| Surface Treatment | Bright | Dimensions | 1220*2440, 1500*3000, 1500*6000, 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), CR, HR, No.1, 1D, No.4, BA, 8K, Hairline, Brush, Mirror |
| Carbon Content | 0.08 Wt% | Chromium Content | 17.0-19.0 Wt% |
| Nickel Content | 9.0-12.0 Wt% | Yield Strength | 30 Ksi Min |
| Tensile Strength | 75 Ksi Min | Elongation | 40% Min |
| Hardness | 95 Rb Max | ||
| Highlight | Heat Resistant Stainless Steel Plate,Grade 321 Stainless Steel Sheet,ASTM A240 Alloy 321 Plate |
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Product Description
NO.1 Surface Hot Rolled Stainless Steel Plates Grade 321
UNS S32168 Inox Plate ASTM A240 Alloy 321/321H Heat Resistant
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 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 |
Other Trade Names
SS 321, SUS 321, Inox 321, DIN 1.4541, UNS S32100, AISI 321, SAE 321 Sheet
Available Grades
201, 202, 304, 304L, 304H, 309S, 310S, 310H, 310Si2, 316L, 316Ti, 316LN, 317L, 321, 347, 409L, 410, 410S, 416, 420, 430, 431, 436L, 439, 441, 443, 444, S31803, S32750, 904L, S30815, S31254, C276, C4, 600, 625, etc.
Grade 321/321H Stainless Steel Overview
321 stainless steel is a titanium stabilized grade specifically designed for service in the 1000-1600°F temperature range. For optimal performance at temperatures up to 1600°F, a stabilizing treatment at 1550-1650°F followed by air cooling is recommended to provide maximum resistance to intergranular corrosion and polythionic acid stress corrosion cracking.
This grade is readily weldable using all common methods including submerged arc welding. Appropriate weld fillers include AWS ER347 bare wire and E347 covered electrodes. With a machinability rating of 45% relative to AISI B1112, 321 stainless steel offers similar machining characteristics to 304 stainless steel.
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
Applications
Typical applications of 321 stainless steel include:
- Aircraft piston engine manifolds
- Expansion joints
- Firearms production
- Thermal oxidizers
- Refinery equipment
- High temperature chemical process equipment
Chemical Composition
Chemical Composition (wt%) limits as specified in ASTM A240 and ASME SA240*
| 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
Mechanical Properties
Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA240
| Property | 321 |
|---|---|
| Yield Strength, min. (ksi) | 30 |
| Tensile Strength, min. (ksi) | 75 |
| Elongation, min. (%) | 40 |
| Hardness, max. (Rb) | 95 |
Grade Specification Comparison
| 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 |
Alternative Grades
| 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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