API 5L- Specification for Line Pipe (41st Edition)
by American Petroleum Institute

Speci-cation forLine Pipe API SPECIFICATION 5LFORTY-FIRST EDITION, APRIL 1, 1995 COPYRIGHT American Petroleum InstituteLicensed by Information Handling Services
1 Scope
1.1 PURPOSE AND COVERAGE

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