标准摘要
[中文适用范围]： 本文件规定了石油和天然气行业管道运输系统用无缝钢管和焊接钢管的两种产品规格级别（PSL 1 和 PSL 2）的制造要求。 本文件对 API Spec 5L 第 46 版（2018 年）进行了补充，除本文件中规定的例外情况外，其要求均适用。 本文件不适用于铸管。 [外文原描述]： This document specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries. This document supplements API Spec 5L, 46 th edition (2018), the requirements of which are applicable with the exceptions specified in this document. This document is not applicable to cast pipe.
英文名称Petroleum and natural gas industries — Steel pipe for pipeline transportation systems