API 5L X70 Pipe is also well-known with the name of the L485 pipe. It comes with 1" to 26-inch diameter. This grade is available with various Wall Thickness starting from SCH 10, SCH 20, SCH 30, STD, SCH 40, up to SCH 60 with Pipe length between 3m to 12meter. Pipe Standard comes under API 5L X70 Tubular and equivalent grades are CSA Z245, ASTM A53, A106 or other standards.
API 5L X70 PSL2 is a specification for line pipe material used in oil and gas transportation systems. Here are some key aspects of the API 5L X70 PSL2 specification:
Grade: API 5L X70 refers to the specific grade of steel used, indicating a minimum yield strength of 70,000 psi.
PSL2: This denotes the product specification level indicating higher quality requirements compared to PSL1, including stricter mechanical properties, non-destructive testing, and additional testing requirements.
API 5L X70 Carbon Steel pipes Chemical Composition
| Mass fraction, based upon heat and product analysis a | |||||||
| 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 |
API 5L X70 PSL 2 Carbon Steel Line Pipes Chemical Composition
| 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 | |||||||||||
| L485Q or X70Q | 0.18f | 0.45f | 1.8f | 0.025 | 0.015 | g | g | g | h | 0.43 | 0.25 |
| WELDED PIPE | |||||||||||
| L485M OR X70M | 0.12f | 0.45f | 1.7f | 0.025 | 0.015 | g | g | g | h | 0.43f | 0.25 |
API 5L X70 Carbon Steel Pipes Mechanical Properties
| Y.S | T.S | ELONGATION |
| Mpa(psi) | Mpa(psi) | |
| min | min | min |
| 485(70 300) | 570(82 700) | F |
API 5L X70 PSL 2 Carbon Steel Line Pipes Mechanical Properties
| Y.S | T.S | ELONGATION |
| Mpa(psi) | Mpa(psi) | |
| min | min | min |
| 485(70 300) | 635(92 100) | F |
Testing: The specification includes various tests like chemical composition analysis, tensile testing, hardness testing, impact testing, non-destructive testing (such as ultrasonic examination), and others to ensure the quality and integrity of the line pipe material.
Dimensions: API 5L X70 PSL2 specifies dimensional requirements for line pipes such as diameter, wall thickness, and length.
Compliance with API 5L X70 PSL2 ensures that the line pipe material meets stringent industry standards for use in demanding oil and gas pipeline applications.
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