Wrought butt-weld fittings
ASTM A234 WP92 — chemistry & properties
ASTM A234 WP92 (Wrought butt-weld fittings, UNS K92460): chemical composition and mechanical properties. Butt-weld fittings for P92 main steam lines
Chemical composition (wt %)
| C | 0.07 – 0.13 |
| Mn | 0.3 – 0.6 |
| P | ≤ 0.02 |
| S | ≤ 0.01 |
| Si | ≤ 0.5 |
| Cr | 8.5 – 9.5 |
| Ni | ≤ 0.4 |
| Mo | 0.3 – 0.6 |
| N | 0.03 – 0.07 |
Mechanical properties
| Tensile strength, min | 620 MPa |
| Yield strength, min | 440 MPa |
| Elongation, min | 20 % |
| Hardness | 269 HBW max |