PURPOSE AND COVERAGE
The purpose of this specification is to provide standards for
pipe suitable for use in conveying gas, water, and oil in both
the oil and natural gas industries.
This specification covers seamless and welded steel line
pipe. It includes plain-end, threaded-end, and belled-end pipe,
as well as through-the-ftowline (TFL) pipe and pipe with
ends prepared for use with special couplings.
Although the plain-end line pipe meeting this specification
is primarily intended for field makeup by circumferential
welding, the manufacturer will not assume responsibility for
field welding.