Square tube of product characteristics and uses 

 1, square tube products 

 Enjoy Xin square tube is a hollow square cross-section of light thin-walled steel pipe, also known as steel cold-formed profiles. It is made by the Q235 hot rolled or cold rolled strip or coil for parent metal forming by cold bending after the high-frequency welding steel of square cross-section shape and size. Hot-rolled special thick-walled square tubes in addition to wall thickness of thickening, the size of the corner and edge straightness to achieve even more than the resistance welding of cold formed square tube level. 

 2, square tube use 

 Enjoy Xin square tube used in construction, machinery manufacturing, steel construction projects, shipbuilding, solar power bracket, steel structure engineering, electrical engineering, power plants, agricultural and chemical machinery, glass curtain wall, car chassis, airports, boiler construction, highway railings, building, and so on. 

 Square tube classification 

 1, square tube production technology classification 

 Enjoy Xin square tube production process: hot-rolled seamless square tube, cold drawn seamless square tube, extruded seamless square tube, welded square tube. 

 Welded square tube is divided into: 

 (A) The process points - arc welding square tube, ERW square pipe (high-frequency, low frequency), gas welding square tube furnace welded square tube 

 (B) the weld points - the straight seam welded pipe, spiral welded square tube 

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