ATI 201LN Austenitic Stainless Steel (Cryogenic Grade) vs ATI 302 Austenitic Stainless Steel
Property comparison of ATI 201LN Austenitic Stainless Steel (Cryogenic Grade) and ATI 302 Austenitic Stainless Steel, both stainless steel.
| Property | ATI 201LN Austenitic Stainless Steel (Cryogenic Grade) | ATI 302 Austenitic Stainless Steel | Difference |
|---|---|---|---|
| Yield strength | 320 MPa | 205 MPa | -36% |
| Tensile strength | 685 MPa | 515 MPa | -25% |
| Elongation | 51 % | 40 % | -22% |
| Elastic modulus | 193,000 MPa | 200,000 MPa | +4% |
| Density | 7,840 kg/m³ | 7,900 kg/m³ | +1% |
Difference is ATI 302 Austenitic Stainless Steel relative to ATI 201LN Austenitic Stainless Steel (Cryogenic Grade). 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
- 201LN
- standard
- ASTM A240; ASME SA-240; ASTM A666
- heat treatment
- Mill Annealed
- grade
- 302
- standard
- ASTM A240
- 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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