The API SPEC 5L specification provides standards for pipe suitable for use in conveying gas, water, and oil in the natural gas and oil industries. The API SPEC 5L covers seamless and welded steel line pipe. It includes plain-end, threaded-end, and belled-end pipe, as well as through-the-flowline (TFL) pipe, and pipe with ends prepared for use with special couplings.
Nominal Pipe Size 2″ to 24″ O.D.
Wall Thickness – Schedule 10 through 160, STD, XS, XXS.
Standard API 5L
Product Specification Level PSL-2
Steel grade X52
Chemical Properties %
application of API 5L line pipe
Gas, water and oil transportation – preferred in long pipelines due to inexpensiveness
Pipeline steel – resistance to crack propogation
Line Pipe / Sour Service Line Pipes