WITH THE CHARACTERISTICS OF WELDED STEEL PIPE

After cold rolled tube has the following series of characteristics:
1, after the cold rolled welded steel pipe with fine grain microstructure, mechanical properties and physical properties of materials are superior; 2, cold rolling mill for a larger correction of original tube wall thickness deviation, precise geometry, the surface roughness is low; 3, pass deformation is large, up to 70, with 4 -85%%; the cold rolling pipe can reduce the amount of intermediate processes, such as heat treatment, pickling, forging, straightening and cutting, metal materials, fuel, electricity and other auxiliary materials and human consumption is reduced; 5, with the cold rolling method can produce thin wall and thin wall, inner and outer surface of the pipe quality no scratches; 6, effectively rolling high alloy, plastic metal pipe poor.