Forged flanges & fittings
ASTM A182 F1 — chemistry & properties
ASTM A182 F1 (Forged flanges & fittings, UNS K12822): chemical composition and mechanical properties. Carbon-molybdenum forgings for moderate-temperature steam and hydrocarbon service
Chemical composition (wt %)
| C | ≤ 0.28 |
| Mn | 0.6 – 0.9 |
| P | ≤ 0.045 |
| S | ≤ 0.045 |
| Si | 0.15 – 0.35 |
| Mo | 0.44 – 0.65 |
Mechanical properties
| Tensile strength, min | 485 MPa |
| Yield strength, min | 275 MPa |
| Elongation, min | 20 % |
| Hardness | 143–192 HBW |