Straight seam welded steel pipe is made of low-carbon and environmentally friendly structural steel or low-alloy,Structural steel is cold-rolled into billets at a certain spiral angle (known as forming angle),and then welded with pipe seams,It can produce large straight seamless steel pipes using narrow strip steel,The specifications are expressed by diameter * wall thickness,Welded pipes should ensure that the pressure test,compressive strength,and cold drawing performance of the welding meet the requirements,
2025-07-04