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About Stainless Steel
Compare over 25 types of stainless steel to find the right material for you—all with material certificates for traceability.
High-Temperature 309/310 Stainless Steel
309/310 stainless steel has high levels of chromium and nickel to provide good corrosion resistance at elevated temperatures. Often used in heat exchangers and furnaces, this material maintains its corrosion resistance up to the maximum temperature.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Sheets

- Yield Strength: 30,000 psi
- Hardness: Rockwell C18 (Medium)
- Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met: SAE AMS5521, ASTM A240
Thick. | Thick. Tolerance | Fabrication | Flatness Tolerance | 6” × 6” | 12” × 12” | 24” × 24” | |
0.029" | -0.01" to 0.07" | Cold Rolled | 1/2" per 5 ft. | 000000 | |||
0.048" | -0.01" to 0.07" | Cold Rolled | 1/2" per 5 ft. | 000000 | |||
0.059" | -0.01" to 0.07" | Cold Rolled | 1/2" per 5 ft. | 000000 | |||
0.12" | -0.01" to 0.07" | Cold Rolled | 1/2" per 5 ft. | 000000 | |||
1/4" | -0.01" to 0.085" | Cold Rolled | 1/2" per 5 ft. | 000000 |