Grade 321 Cold Rolled Stainless Steel Plate with Bright Surface for High Temperature Applications
Price:
US $2.35-4.85 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
Stainless Steel 321 1.4541 Data Sheet S32168 Stainless Steel Plate
Grade 321 / 321H Stainless Steel Sheet UNS S32100 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 with 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 similar machining characteristics to 304 stainless steel.
Available Product Forms
- Sheet, Plate, Coil, Strip
- Wire, Pipe, Tube, Bar
- Profile, Round, Flat, Square, Hexagonal
Specifications and Dimension Ranges
Key Specifications
- 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
| Product Type | 321 Stainless Steel Sheet, 321 Stainless Steel Plate |
|---|---|
| Specification | ASTM A240 / ASME SA240 |
| Tolerances (width / thickness) | EN 10258/ DIN 59381 |
| International Standard | ASTM A 480, ASTM A 959, 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 | 10-2500mm |
| 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 |
| 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) |
Dimension Ranges
- Width: 600mm - 2030mm
- Thickness: 0.1mm - 120.0mm
- Length: 300mm - 6000mm (Maximum 18000mm)
Surface Finish Options
No.1, 2B, BA, No.3, No.4, No.5, No.8, HL, Etching, SB, Ti-coating, color-coating, embossing
Applications
Typical applications include:
- Aircraft piston engine manifolds
- Expansion joints
- Firearms production
- Thermal oxidizers
- Refinery equipment
- High temperature chemical process equipment
Technical Data Sheet
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 |
Possible 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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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben