The API 5L X60 PSL2 specification is a widely used standard for line pipes in the oil and gas industry, covering pipes suitable for transportation systems in onshore and offshore applications. These pipes are made from carbon steel and are primarily used to transport oil, gas, and water.

Key Features of API 5L X60 PSL2:

Grade: X60 indicates a minimum yield strength of 60,200 psi (415 MPa).

PSL2: This specifies Product Specification Level 2, which has stricter requirements for chemical composition, mechanical properties, and testing compared to PSL1.

1. Chemical Composition for API 5L X60 PSL2

Note: Variations may exist depending on the exact pipe manufacturing method and process.

2. Mechanical Properties

3. Testing Requirements for PSL2

Non-destructive testing (NDT): Required for all pipes, including tests such as ultrasonic and X-ray.

Fracture toughness: Charpy impact testing is mandatory to ensure the material's toughness, especially in low-temperature conditions.

Chemical testing: Verification of the chemical composition through lab testing.

Tensile tests: Carried out to ensure the pipe meets the minimum strength requirements.

4. Manufacturing Process

Seamless Pipes: Manufactured without a seam or weld, offering superior mechanical properties.

Welded Pipes: Can be either electric resistance welded (ERW) or submerged arc welded (SAW).

5. Dimensions and Sizes

Wall Thickness: Depending on the pipe diameter, API 5L X60 PSL2 pipes come in various thicknesses, from 5mm to over 25mm.

Pipe Diameter: From 21.3 mm to over 1200 mm, based on specific application needs.

6. Applications

Pipeline Transportation: Used for transporting oil, gas, and water.

Onshore and Offshore: Suitable for both onshore and offshore pipeline projects.

High-Pressure Services: The material's high strength makes it ideal for use in high-pressure and demanding environments.

This specification ensures that API 5L X60 PSL2 pipes are of high quality, durable, and able to withstand the demanding conditions found in the oil and gas industry.