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ASTM A240 Hot Rolled Corrosion Resistant Stainless Steel Plate SUS321 Plate
Product Details
| Model NO. | 321 | Shape | Flat |
|---|---|---|---|
| Technique | Cold Rolled | Surface Treatment | Bright |
| Specification | 1220*2440, 1500*3000, 1500*6000, 2000*6000mm | Production Capacity | 50000kgs |
| Thickness Range | 0.1 To 100 Mm | Width Range | 10-2500mm |
| Length Range | 2m, 2.44m, 3m, Or As Required | Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard |
| Yield Strength | 30 Ksi | Tensile Strength | 75 Ksi |
| Elongation | 40% | Density | 0.286 Lb/in3 |
| Thermal Conductivity | 9.3 Btu/ft Hr ˚F | ||
| Highlight | ASTM A240 Stainless Steel Plate,Hot Rolled SUS321 Plate,Corrosion Resistant 321 Stainless Steel Sheet |
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Product Description
ASTM A240 Hot Rolled Stainless Steel 321 Plate SUS321 Plate
Grade 321/321H Stainless Steel Sheet UNS S32100 is a titanium-stabilized austenitic stainless steel designed for high-temperature service in the 1000-1600°F range. This grade offers excellent resistance to intergranular corrosion and polythionic acid stress corrosion cracking.
Product Overview
321 stainless steel is commonly used for high-temperature applications and can be stabilized at 1550-1650°F for optimal corrosion resistance. It welds readily using common methods including submerged arc welding with appropriate AWS ER347 and E347 fillers. The material has a machinability rating of 45% relative to AISI B1112.
Available Product Forms
- Sheet, Plate, Coil, Strip
- Wire, Pipe, Tube, Bar
- Profile, Round, Flat, Square, Hexagonal
Specifications & Dimensions
| Product Type | 321 Stainless Steel Sheet, 321 Stainless Steel Plate |
|---|---|
| Specification | ASTM A240 / ASME SA240 |
| Tolerances | EN 10258 / DIN 59381 |
| International Standards | ASTM A480, ASTM A959, ASME IID, EN ISO 9445, EN ISO 18286, EN 10051, EN 10088-1, ISO 15510 |
| Dimensions | Cold rolled: 0.5-6.4 mm, Hot rolled: 3.0-10.0 mm |
| Thickness | 0.1 to 100 mm |
| Width | 10-2500 mm |
| Length | 2m, 2.44m, 3m, or as required |
| Finish | Satin, 2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), and various surface treatments |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard |
Dimension Ranges
- Width: 600mm - 2030mm
- Thickness: 0.1mm - 120.0mm
- Length: 300mm - 6000mm (Max 18000mm)
Surface Finishes
No.1, 2B, BA, No.3, No.4, No.5, No.8, HL, Etching, SB, Ti-coating, color-coating, embossing
Applications
- Aircraft piston engine manifolds
- Expansion joints
- Firearms production
- Thermal oxidizers
- Refinery equipment
- High temperature chemical process equipment
Technical Data
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 |
Physical Properties
| Property | 321 Data |
|---|---|
| Density, lb/in³ | 0.286 |
| Modulus of Elasticity, psi | 28.0 x 10⁶ |
| Coefficient of Thermal Expansion, 68-212˚F, /˚F | 9.2 x 10⁻⁶ |
| Thermal Conductivity, Btu/ft hr ˚F | 9.3 |
| Specific Heat, Btu/lb ˚F | 0.12 |
| Electrical Resistivity, Microohm-in | 28.4 |
International Grade Equivalents
Grade 321 stainless steel is recognized under multiple international standards including ASTM A182 F321, JIS SUS321, EN 1.4541, GOST 08X18H10T, and UNS S32100 among numerous other designations.
Alternative Material Options
| Grade | Alternative Application |
|---|---|
| 304L | When intergranular corrosion resistance is needed without high-temperature strength requirements |
| 3CR12 | For mild high-temperature environments up to approximately 600°C |
| 304H | For mild high-temperature environments up to approximately 800°C |
| 310 | For operating temperatures up to 1100°C |
| S30815 (253MA) | For operating temperatures up to 1150°C |
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