API 5L pipe

API 5L is the standard of API 5L pipeline. API 5L meets the requirements of ISO 3183. The API 5L specification provides standards for pipelines used to transport natural gas, water and oil in the natural gas and oil industries. API Spec 5L covers seamless and welded steel pipes. It includes standard weight and super threaded piping. And ordinary end of standard weight, ordinary end of ordinary weight, special ordinary end, super ordinary end, special ordinary end, super ordinary end pipes, as well as Bell and convex and straight through streamline (TFL) pipes.


This specification covers grades a25, a, B (and the following "X" grades), X42, X46, X52, X56, X60, X65, X70, X80. Two digits after "X" indicate the minimum yield strength (in 000 psi) of the pipe produced to that grade.


Pipes conforming to ASTM 106 class A or B standards shall not be interchanged with API 5L. The requirements for API 5L x grade are more strict, rolling grade is not accepted, and rework is not allowed. In addition, special attention has been paid to sour service as well as toughness and toughness testing at higher pressure and temperature levels


Application and advantages of API 5L pipeline:


1. API 5L pipeline is cheap and the first choice for long pipelines, so it is widely used in the transportation of natural gas, water and oil.


2. API 5L pipeline can resist crack growth, so it can be used for pipeline steel.


3. Pipeline and acid service pipeline