GB/T 3091-2015 Welded steel pipes for low pressure liquid delivery
GB/T 3091-2015 Welded steel pipes for low pressure liquid delivery
Basic Information
Scope
This standard specifies the dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking, and quality certificates of welded steel pipes for low-pressure fluid transmission. This standard applies to straight-seam electric welded steel pipes, straight-seam submerged arc welded (SAWL) steel pipes, and spiral-seam submerged arc welded (SAWH) steel pipes used for low-pressure fluid transmission, such as water, air, heating steam, and gas. It also specifies different requirements for each type of pipe, and the unspecified requirements apply to straight-seam high-frequency electric welded steel pipes, straight-seam submerged arc welded steel pipes, and spiral-seam submerged arc welded steel pipes simultaneously.