What is API 5L X65 Pipe
X65 belongs to the high-strength pipeline steel grade in the API 5L standard. Its minimum yield strength reaches 448MPa, which can withstand high-pressure transportation environments and is particularly suitable for the construction of long-distance oil and gas pipelines.
What is Carbon Steel API 5L X65 Pipe Specification
What is the Chemical Composition of API 5L X65 PSL 1 Carbon Steel Line Pipes
| SEAMLESS PIPE | |||||||
| C | Mn | P | S | V | Nb | Ti | |
| maxb | max.b | min. | max. | max. | max. | max. | max. |
| 0.28e | 1.40e | – | 0.030 | 0.030 | f | f | f |
| WELDED PIPE | |||||||
| 0.26 | 1.45e | – | 0.030 | 0.030 | f | f | f |
What is the Chemical Composition of API 5L X65 PSL 2 Carbon Steel Line Pipes
| Mass fraction, based upon heat and product analysis % maximum | CARBON EQUIVALENT a | ||||||||||
| % MAXIMUM | |||||||||||
| Cb | Si | Mnb | P | S | V | Nb | Ti | Other | CEIIW | CEPcm | |
| SEAMLESS & WELDED PIPES | |||||||||||
| L450Q or X65Q | 0.18f | 0.45f | 1.7f | 0.025 | 0.015 | g | g | g | h | 0.43 | 0.25 |
| WELDED PIPE | |||||||||||
| L450M OR X65M | 0.12f | 0.45f | 1.6f | 0.025 | 0.015 | g | g | g | h | 0.43 | 0.25 |
What is the Mechanical Properties of API 5L X65 PSL 1 Carbon Steel Line Pipes
| Y.S | T.S | ELONGATION |
| Mpa(psi) | Mpa(psi) | |
| min | min | min |
| 450(65 300) | 535(77 600) | F |
What is the Mechanical Properties of API 5L X65 PSL 2 Carbon Steel Line Pipes
| Y.S | T.S | ELONGATION |
| Mpa(psi) | Mpa(psi) | |
| min | min | min |
| 450(65 300) | 600(87 000) | 23% |
