ATI 304 Austenitic Stainless Steel vs ATI 305 Austenitic Stainless Steel
Property comparison of ATI 304 Austenitic Stainless Steel and ATI 305 Austenitic Stainless Steel, both stainless steel.
| Property | ATI 304 Austenitic Stainless Steel | ATI 305 Austenitic Stainless Steel | Difference |
|---|---|---|---|
| Yield strength | 205 MPa | 170 MPa | -17% |
| Tensile strength | 515 MPa | 485 MPa | -6% |
| Elongation | 40 % | 40 % | 0% |
| Elastic modulus | 200,000 MPa | 200,000 MPa | 0% |
| Density | 7,900 kg/m³ | 7,900 kg/m³ | 0% |
| Brinell hardness | 201 HB | 183 HB | -9% |
| Thermal conductivity | 16.3 W/m·K | 16.3 W/m·K | 0% |
| Specific heat | 460 J/kg·K | 460 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.000017 1/K | 0.000017 1/K | 0% |
| Melting point | 1,399 °C | 1,399 °C | 0% |
Difference is ATI 305 Austenitic Stainless Steel relative to ATI 304 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
- 304
- standard
- ASTM A240
- heat treatment
- Annealed
- grade
- 305
- 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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