Standards for the different use of LSAW steel pipes

Longitudinal Submerged Arc Welding (LSAW) steel pipes are utilized in numerous industries and applications, each governed by specific standards. These standards ensure that the pipes meet the required quality and performance criteria for their intended uses.

GB/T14291-1992 (Mineral Fluid Transport Welded Steel Pipe):

Purpose: This standard is primarily used for straight seam welded steel pipes designed for mine pressure systems, drainage, and shaft discharge applications.

Material: It typically involves Q235A and B grade steel.

GB/T14980-1994 (Large Diameter Electric Welded Steel Pipe for Low Pressure Fluid Transportation):

Purpose: This standard applies to large diameter electric welded steel pipes used for transporting low-pressure fluids such as water, sewage, gas, air, and heating steam.

Material: It represents Q235A grade steel.

GB/T12770-1991 (Stainless Steel Welded Steel Pipe for Mechanical Structures):

Purpose: This standard covers stainless steel welded pipes used in mechanical structures, including machinery, automobiles, bicycles, furniture, and hotel and restaurant decorations.

Material: The materials include 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, and 0Cr18Ni11Nb, among others.

GB/T12771-1991 (Stainless Steel Welded Steel Pipe for Fluid Transportation):

Purpose: This standard is intended for stainless steel welded pipes used in transporting low-pressure corrosive media.

Material: Representative materials include 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, and 0017Cr17Ni14Mo2.

These standards ensure that LSAW steel pipes are suitable for their respective applications, providing reliability and safety across various industries.