Austenitic steel castings
ASTM A351 CF8M — chemistry & properties
ASTM A351 CF8M (Austenitic steel castings, UNS J92900): chemical composition and mechanical properties. Cast 316-type valve bodies & fittings
Chemical composition (wt %)
| C | ≤ 0.08 |
| Mn | ≤ 1.5 |
| P | ≤ 0.04 |
| S | ≤ 0.04 |
| Si | ≤ 1.5 |
| Cr | 18 – 21 |
| Ni | 9 – 12 |
| Mo | 2 – 3 |
Mechanical properties
| Tensile strength, min | 485 MPa |
| Yield strength, min | 205 MPa |
| Elongation, min | 30 % |
| Hardness | Not specified |