Line pipe is manufactured using high‐strength carbon steel, and is manufactured per specifications by the American Petroleum Institute (API).
Line pipe is made to transport natural gas, oil and water. This specification includes standards for the dimensional, physical, mechanical, and chemical properties of the carbon steel. Pipe mills manufacture both seamless and welded line pipe.
Line Pipe Gauging practice and thread inspection should conform to the requirements of API Spec 5B. Thread Check, Inc. offers the complete range of API Line Pipe Thread Plug and Ring Gages to API Spec 5B. Our engineering staff have served on various API gaging subcommittees and have worked in the energy industry for many decades. Thread Check's expert engineers can assist you with engineering and building custom gages. Thread Check is a proud member of the American Petroleum Institute.