GB/T 3091-2008 Welded steel pipes for low pressure liquid delivery
GB/T 3091-2008 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 welded steel pipes for low-pressure fluid transmission, such as water, air, heating steam, and gas. This standard includes straight-seam high-frequency resistance welded (ERW) steel pipes, straight-seam submerged arc welded (SAWL) steel pipes, and spiral-seam submerged arc welded (SAWH) steel pipes. Different requirements are specified for each type, and the unspecified requirements apply to all three types of welded steel pipes: straight-seam high-frequency resistance welded, straight-seam submerged arc welded, and spiral-seam submerged arc welded.