The API SPEC 5L specification gives criteria for pipe acceptable for use in distributing gas, petroleum, and petroleum in the pure gas and petroleum industries. The API SPEC 5L covers seamless and welded steel line pipe. It features plain-end, threaded-end, and belled-end pipe, in addition to through-the-flowline (TFL) pipepipe with ends ready to be used with specific couplings.
Pipe made to ASTM106 Grade A or B aren't interchangable with API 5L. Prerequisites to API 5L X levels are somewhat more rigorous; wrapped grades aren't suitable and rework isn't permitted. Additionally, particular care is given to endurance and endurance evaluations for sour services and greater pressure & temperature courses.
Click on following different types of API 5L Pipes to know about products grades, compositions and specifications :