ATI 201 HP Austenitic Stainless Steel vs ATI 201LN Austenitic Stainless Steel (Cryogenic Grade)
Property comparison of ATI 201 HP Austenitic Stainless Steel and ATI 201LN Austenitic Stainless Steel (Cryogenic Grade), both stainless steel.
| Property | ATI 201 HP Austenitic Stainless Steel | ATI 201LN Austenitic Stainless Steel (Cryogenic Grade) | Difference |
|---|---|---|---|
| Yield strength | 301 MPa | 320 MPa | +6% |
| Tensile strength | 696 MPa | 685 MPa | -2% |
| Elongation | 56 % | 51 % | -9% |
| Elastic modulus | 207,000 MPa | 193,000 MPa | -7% |
| Density | 7,860 kg/m³ | 7,840 kg/m³ | 0% |
Difference is ATI 201LN Austenitic Stainless Steel (Cryogenic Grade) relative to ATI 201 HP Austenitic Stainless Steel. 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
- 201 HP
- standard
- ASTM A240
- heat treatment
- Annealed
- grade
- 201LN
- standard
- ASTM A240; ASME SA-240; ASTM A666
- heat treatment
- Mill 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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