API 5L Pipe Inspection and Testing

Metal Test Laboratory

API 5L Pipe Inspection and Testing

The API 5L standard and specification, developed by the American Petroleum Institute (API), covers oil, gas and water transport pipes in the oil, gas and water distribution industries. The full name of the standard is as follows: API 5L Pipe inspection and testing.

API 5L Pipe Inspection and Testing

According to this standard, pipes are classified according to the following criteria:

  • Application: seamless or welded (seamless pipes can be used up to 24 inches, LSAW can be used over 24 inches, ERW up to 20 inches)
  • Specification level: API PSL1 is a standard quality used for pipelines, API PSL2 sets stricter chemical, mechanical properties and test requirements
  • Surface quality: black, varnish painted, anti-rust oil, galvanized, externally coated and internally primed
  • Tip types: straight, beveled, threaded tips

The main advantages of the pipe in accordance with the API 5L standard are:

  • Resistance to cracking forces that can spread in long pipelines
  • Strict service availability
  • Quite cheap and long service life

In American Petroleum Institute API 5L standard and American Mechanical Engineers Association ASME B36.10 standard, pipe sizes and weights are the same.

Companies producing steel pipes require API 5L audits from authorized institutions to evaluate their ability to comply with the API 5L standard. An API monogram is given to pipe factories that successfully pass this inspection. This monogram has an expiration date.

In brief, the API 5L specification published by the American Petroleum Institute for line pipe sets requirements for seamless and welded steel pipe used for oil and gas transportation systems. This certification program requires detailed tests, including hydrostatic testing, non-destructive testing and destructive testing. Comply with API 5L standard it provides businesses with cost savings in steel pipe projects.

Among the services provided by our organization within the framework of metallic testing services are API 5L standard tests.

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