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Titanium Stabilized SS 321 Stainless Steel Plate with High Temperature Resistance and Cold Rolled Finish
Product Details
| Model NO. | 321 | Shape | Flat |
|---|---|---|---|
| Technique | Cold Rolled | Surface Treatment | Bright |
| Specification | 1220*2440, 1500*3000, 1500*6000, 2000*6000mm | 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 | Modulus Of Elasticity | 28.0 X 106 Psi |
| Thermal Conductivity | 9.3 Btu/ft Hr ˚F | ||
| Highlight | Titanium Stabilized Stainless Steel Plate,High Temperature Resistance SS 321 Plate,Cold Rolled 321 Stainless Steel Sheet |
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Product Description
Grade 321 / 321H Stainless Steel Sheet UNS S32100
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. Recommended 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 machining characteristics similar to 304 stainless steel.
Available Product Forms
Sheet, Plate, Coil, Strip, Wire, Pipe, Tube, Bar, Profile, Round, Flat, Square, Hexagonal
Specifications and 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), No.1 finish hot rolled, 1D, No.4, BA, 8K, hairline, brush, mirror, etc. |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard |
Dimension Ranges
Width: 600mm-2030mm
Thickness: 0.1-120.0mm
Length: 300-6000mm, Maximum 18000mm
Thickness: 0.1-120.0mm
Length: 300-6000mm, Maximum 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
International Equivalents
AISI 321 equivalents include: ASTM A182 Grade F321, ASTM A580 Grade S32100, SAE 321, ASTM A193 Grade B8T Class 1, ASTM A632 Grade TP321, JIS SUS321, ASTM A193 Grade B8T Class 2, ASTM A774 Grade TP321, JIS SUS321TPY, and numerous other international standards including EN X6CrNiTi18-10, EN 1.4541, GOST 06Ch18N10T, and UNS S32100.
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 |
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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