Introduction of Different Welding Procedure of Steel Pipes

A Steel Pipes, according to the shaping procedure, can be classified into spiral welded pipes and longitudinal weld steel pipes. Or classified into high frequency electric resistance welded steel pipes and submerge arc welded steel pipes; All spiral welding adopts arc submerged welding procedure (SSAW for short), while there are two kinds of longitudinal welded pipes, submerged arc welded pipes, (UOE or LSAW for short), and high frequency electric resistance welded pipes, ERW for short.