Alloy steel castings
ASTM A217 WC6 — chemistry & properties
ASTM A217 WC6 (Alloy steel castings, UNS J12072): chemical composition and mechanical properties. High-temperature valve bodies (1¼Cr-½Mo)
Chemical composition (wt %)
| C | 0.05 – 0.2 |
| Mn | 0.5 – 0.8 |
| P | ≤ 0.04 |
| S | ≤ 0.045 |
| Si | ≤ 0.6 |
| Cr | 1 – 1.5 |
| Mo | 0.45 – 0.65 |
Mechanical properties
| Tensile strength, min | 485 MPa |
| Yield strength, min | 275 MPa |
| Elongation, min | 20 % |
| Hardness | Not specified |