Alloy seamless pipe
ASTM A335 P5 — chemistry & properties
ASTM A335 P5 (Alloy seamless pipe, UNS K41545): chemical composition and mechanical properties. Refinery heater and hydrogen piping
Chemical composition (wt %)
| C | ≤ 0.15 |
| Mn | 0.3 – 0.6 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Si | ≤ 0.5 |
| Cr | 4 – 6 |
| Mo | 0.45 – 0.65 |
Mechanical properties
| Tensile strength, min | 415 MPa |
| Yield strength, min | 205 MPa |
| Elongation, min | 30 % |