GB/T 3091-2001 in English

本标准规定了低压流体输送用直缝焊接钢管的尺寸、外形、重量、技术要求、试验方法、检验规则、包装、标志及质量证明书。本标准适用于水、污水、燃气、空气、采暖蒸汽等低压流体输送用和其他结构用的直缝焊接钢管。本标准对电阻焊钢管和埋弧焊钢管的不同要求分别做了标注，未标注的同时适用于电阻焊钢管和埋弧焊钢管。

Scope

This standard specifies the size, shape, weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of straight seam welded steel pipes for low-pressure fluid transportation. This standard is applicable to straight seam welded steel pipes for conveying low-pressure fluids such as water, sewage, gas, air and heating steam, and for other structures. This standard marks the different requirements for electric resistance welded steel pipes and submerged arc welded steel pipes, and those not marked are applicable to both electric resistance welded steel pipes and submerged arc welded steel pipes.