No. 1. Different nature
1. High-frequency welded steel pipe: After the hot-rolled coil is formed by the forming machine, the skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube blank, and pressure welding is performed under the action of the extrusion roller to realize production. The product.
2. Straight seam welded steel pipe: including double-sided submerged arc welded straight seam welded steel pipe and high-frequency resistance welding, the English abbreviation of high-frequency resistance welding is erw, and the submerged arc welded straight seam steel pipe is divided into UOE, RBE according to its different forming methods, JCOE steel pipe, etc.
No.2. The material is different
1. High-frequency welded steel pipe: The high-frequency resistance welded steel pipe is different from the ordinary welded pipe welding process. The weld is formed by melting the base material of the steel strip body, and the mechanical strength is better than that of ordinary welded pipes.
2. Straight seam welded steel pipe: The material of straight seam welded steel pipe mainly includes pipeline steel series such as Q195, Q215, Q345, and x42. Straight seam welded steel pipes are divided into two types: ordinary steel pipes and thickened steel pipes according to the specified wall thickness.
No. 3 . Different characteristics
1. High-frequency welded steel pipe: smooth appearance, high precision, low cost, and small residual height of the weld, which is beneficial to the coating o
Post time: Nov-08-2022