Seamless line pipe
API 5L X65 PSL2 — chemistry & properties
API 5L X65 PSL2 (Seamless line pipe): chemical composition and mechanical properties. Oil and gas transmission and gathering lines
Chemical composition (wt %)
| C | ≤ 0.18 |
| Mn | 1.70 max (seamless, Q condition) |
| P | ≤ 0.025 |
| S | ≤ 0.015 |
| Si | ≤ 0.45 |
Mechanical properties
| Tensile strength, min | 535 MPa |
| Yield strength, min | 450 MPa |
| Hardness | Not specified |
| Impact test | Required (PSL2) |