Classification of welded pipe

　　Welded steel pipe is made of steel or steel after bending, then welded. According to the weld form is divided into longitudinal and spiral welded steel pipe. Dividedagain general welded steel pipe, galvanized pipe, blowing pipe, wire tube, pipe metric, roller tube, deep well pump, tube for automobile, transformer tube, welding, welding of thin-walled tube shaped tube and spiral welded steel pipe. General general pipe: pipe used for conveying low pressure fluid. Made with Q195A, Q215A and Q235A steel. Also can use other steel easy welding manufacturing. Steel pipe to be hydraulic, bending, flattening and other experiments, the surface quality has certain requirements, usually the length of delivery is 4-10m, often require fixed length (or double foot) delivery. The specifications of ASTM A500 Carbon Welded Steel Pipe with nominal diameter (mm or inches) nominal diameter and different pipe wall thickness, according to the provisions of general steel and thicker steel two, steel pipe end is divided according to form of threaded and non threaded two