CS butt-weld fittings
ASTM A234 WPB — chemistry & properties
ASTM A234 WPB (CS butt-weld fittings, UNS K03006): chemical composition and mechanical properties. Carbon steel elbows, tees, reducers and caps.
Chemical composition (wt %)
| C | ≤ 0.3 |
| Mn | 0.29 – 1.06 |
| P | ≤ 0.05 |
| S | ≤ 0.058 |
| Si | ≥0.10 |
| Cr | ≤ 0.4 |
| Ni | ≤ 0.4 |
| Mo | ≤ 0.15 |
| Cu | ≤ 0.4 |
| V | ≤ 0.08 |
Mechanical properties
| Tensile strength, min | 415–585 MPa |
| Yield strength, min | 240 MPa |
| Elongation, min | 22 % |