ATI 611 (High-Si Austenitic) vs JS700 (Superaustenitic)
Property comparison of ATI 611 (High-Si Austenitic) and JS700 (Superaustenitic), both stainless steel.
| Property | ATI 611 (High-Si Austenitic) | JS700 (Superaustenitic) | Difference |
|---|---|---|---|
| Yield strength | 360 MPa | 241 MPa | -33% |
| Tensile strength | 710 MPa | 552 MPa | -22% |
| Elongation | 63 % | 30 % | -52% |
| Elastic modulus | 193,000 MPa | 193,000 MPa | 0% |
| Density | 7,589 kg/m³ | 7,950 kg/m³ | +5% |
Difference is JS700 (Superaustenitic) relative to ATI 611 (High-Si Austenitic). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- UNS S30601
- standard
- ASTM A240
- heat treatment
- Annealed
- grade
- UNS N08700
- standard
- ASTM B599; ASTM B672
- heat treatment
- Annealed
About austenitic stainless steels
Austenitic stainless steels are the largest stainless family. They are non-magnetic in the annealed condition and gain corrosion resistance from chromium and nickel (and molybdenum in 316-class grades). They cannot be hardened by heat treatment and rely on cold work for higher strength. Includes the 300-series, super-austenitic grades (904L, AL-6XN), and high-nitrogen variants used in pressure vessels and chemical service.
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