﻿ What is API 5L?-carbon-pipe « The manufaturing standard and
application of LASW steel pipe Stability of spiral steel pipe
thermal fatigue »  What is API 5L?  Generally API 5L refers
toAPI 5L line pipe,which is out of the ground the oil, gas,
water, transported by pipeline to pipe oil and gas industry
companies.  API SPEC 5L-2011 (line pipe specification), the
American Petroleum Institute prepared and published, in the
common parts of the world.  API 5L line pipe is including
seamless steel pipe and welded steel pipe, among pipe end is
with its flat end, threaded end and socket end; its connection
to welding, coupling connections, socket connections.  Useage:
used for oil and gas industry, gas, water, oil transportation.
according to the manufacture process and the tube bloom used
different shapes, the line pipe can be divided into seamless
steel pipe and welded steel pipe, among the usage quantity of
welded steel pipe is more than seamless steel pipe.  Line pipe
grade and chemical components API 5L can be