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stainless steel
Stainless Steel 321/321H
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.
Product information
Stainless Steel 321 Sheets can be welded using most of the resistance and fusion methods. Stainless Steel 321 Plates also possesses good low temperature toughness and is non-magnetic in the annealed condition. In addition to its heat resistance properties, Stainless Steel 321 Coils also enjoys better resistance against creep and stress rupture corrosions. Stainless Steel 321H Sheets is used in Oil Refineries, Fluid catalytic cracking units, Hanger rods, and more. Like most other austenitic alloys, Stainless Steel 321H Plates work hardens and may require annealing after severe forming. Niobium in Stainless Steel 321H Coils has been added to suppress grain boundary Chromium Carbide precipitation.
Stainless Steel 321/321H Sheets & Plates Specification
Grade | Stainless Steel 321/321H (UNS S32100/S32109) |
Standard | ASTM A240 / ASME SA240 |
Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
Thickness | 4 mm To 100 mm |
Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
Form | Sheets, Plates, Coils, Slatting Coils, Perforated Coils |
Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
Typical Analysis
| 321 | Cr% | Ni% | Mo% | Ti% | C% | Cu% | Mn% | Si% | N% |
| MIN | 17.0 | 9.0 | - | (5xC+N) | - | - | - | 0.25 | - |
| MAX | 19.0 | 12.0 | 0.75 | 0.7 | 0.08 | 0.75 | 2.0 | 1.0 | 0.1 |
Mechanical Properties
Properties quoted below are guideline figures only and should not be used for any design purposes.
| - | 0.2% Proof (Nmm²) | UTS (Nmm²) | Elongation (%) |
| 321 (1.4541) | 200 - 300 | 500 - 700 | 40 |
Related Specs & Trade Names
1.4541, Grade 321, Alloy 321, AISI 321, TYPE 321, UNS S32100, X6CrNiTi18-10, ASTM A240, 321H, 321 Stainless, T.321, SS321, 321SS, 321
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A:Carbon steel,alloy steel,stainless steel plate/coil,pipe and fittings,sections etc.
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