API 5L X60 steel specification for line pipe. The American Petroleum Institute specification API 5L covers seamless and welded steel line pipe.
API 5L X60 PSL1 chemical composition
| Grade | C max | Mn max | P max | S max | Ti max |
| API 5L X60 PSL1 | seamless | ||||
| 0.28 | 1.40 | 0.030 | 0.030 | 0.04 | |
| Welded | |||||
| 0.26 | 1.40 | 0.030 | 0.030 | 0.04 | |
API 5L X60 PSL2 chemical composition
| Grade | C max | Mn max | P max | S max | Ti max |
| API 5L X60 PSL2 | seamless | ||||
| 0.24 | 1.40 | 0.025 | 0.015 | 0.04 | |
| Welded | |||||
| 0.22 | 1.40 | 0.025 | 0.015 | 0.04 | |
API 5L X60 PSL1 mechanical properties
| Grade | Yield strength min | Ultimate tensile strength min | ||
| API 5L X60 PSL1 | Psi | Mpa | Psi | Mpa |
| 60.000 | 414 | 75.000 | 517 | |
API 5L X60 PSL2 mechanical properties
| Grade | Yield strength min mpa | Yield strength max mpa | Ultimate tensile strength min mpa | Ultimate tensile strength max mpa |
| X60 | 414 | 565 | 517 | 758 |
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