small welded pipe

Small-diameter welded pipe is also called small-diameter welded pipe, which is made of steel plate or strip welded after crimping forming.Small diameter welded pipe has simple production technology, high production efficiency, more varieties and specifications, less equipment, but its general strength is lower than seamless steel pipe.Since the 1930s, with the rapid development of high quality strip continuous rolling production and the progress of welding and inspection technology, the quality of welding seam has been constantly improved, the variety and specification of small-diameter welded pipe has been increasing, and it has replaced seamless steel pipe in more and more fields.Welded steel pipe can be divided into straight seam welded pipe and spiral welded pipe according to the form of weld.