High-yield forged flanges & fittings
ASTM A694 F65 — chemistry & properties
ASTM A694 F65 (High-yield forged flanges & fittings, UNS K03014): chemical composition and mechanical properties. High-pressure transmission pipeline flanges matched to API 5L X65 line pipe
Chemical composition (wt %)
| C | ≤ 0.3 |
| Mn | ≤ 1.6 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Si | 0.15 – 0.35 |
Mechanical properties
| Tensile strength, min | 530 MPa |
| Yield strength, min | 450 MPa |
| Elongation, min | 20 % |
| Hardness | Not specified |