SS 321 Stainless Steel Sheets Manufacturer
Precision Alloy is a trusted manufacturer and global supplier of SS 321 stainless steel sheets, offering heat-resistant and corrosion-resistant material that complies with ASTM A240, ASME SA240, EN 10088, and DIN 1.4541 standards. Designed for high-temperature environments and welded structures, our 321 sheets are ideal for critical applications in aerospace, chemical, and thermal processing industries.
What are SS 321 Stainless Steel Sheets?
SS 321 stainless steel sheets are titanium-stabilized austenitic stainless steel sheets that offer excellent intergranular corrosion resistance and high-temperature stability. The addition of titanium prevents carbide precipitation during welding and extended exposure to temperatures up to 900°C (1650°F), making it ideal for use in heat exchangers, exhaust systems, and pressure vessels.
SS 321 Stainless Steel Sheets Specifications
| Property | Specification |
|---|---|
| Material Grade | SS 321 |
| UNS Number | S32100 |
| EN / WNR | 1.4541 / X6CrNiTi18-10 |
| Thickness Range | 0.3mm – 50mm |
| Standard Widths | 1000mm / 1220mm / 1500mm / 2000mm |
| Length | Custom length or coil form |
| Surface Finishes | 2B, BA, No. 1, No. 4, Mirror (8K), Hairline |
| Standards | ASTM A240, ASME SA240, EN 10088, DIN 1.4541 |
SS 321 Stainless Steel Sheet Chemical Composition
| Element | % Composition |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Titanium (Ti) | ≥5x(C%) |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
Mechanical Properties of SS 321 Stainless Steel Sheets
| Property | Value |
|---|---|
| Tensile Strength | 515 – 690 MPa |
| Yield Strength | 205 MPa (min) |
| Elongation | 40% (min) |
| Hardness | ≤ 90 HRB |
Applications of SS 321 Stainless Steel Sheets
SS 321 sheets are built for performance in welded, high-heat, and cyclic temperature environments, such as:
Construction & Infrastructure
Automotive & Transportation
Marine & Offshore
Aerospace & Defence
Oil & Gas Industry
Manufacturing & Industrial Machinery
Why Choose Precision Alloy?
- ISO 9001:2015 Certified Manufacturer
- Wide Range of Stainless Steel Bar Shapes & Sizes in Stock
- Surface Finish Options for Decorative or Industrial Use
- Customized Machining & Fast Lead Times
- Global Delivery with Competitive Pricing
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