Stainless steel decorative pipes are used in the field of architectural decoration, and users often cannot distinguish decorative pipes and seamless pipes. Next, let us understand what is the difference between the two?
1. Different production processes
The stainless steel decorative tube is made of steel strip after being crimped and formed by the unit and the mold and welded. The welding method is straight seam welded pipe. The stainless steel seamless tube is made of round steel perforation as the raw material of the tube blank, which is made by the production process of cold rolling, cold drawing or hot extrusion.
2, the surface is different
The wall thickness tolerance of the stainless steel decorative pipe is very small, the wall thickness of the entire circumference is very uniform, and its precision is high, and the inner and outer surfaces of the pipe have high brightness. The precision of seamless pipes is low, the wall thickness is uneven, the brightness of the inner and outer surfaces of the pipes is low, the cost of sizing is high, and there are pits and black spots on the inner and outer surfaces that are not easy to remove. Therefore, the wall of the produced seamless pipe is relatively thick.
3. Different welding performance
Due to the differences in the chemical composition of materials, the steel used to produce decorative pipes contains chemical compositions suitable for welding. For example, elements such as silicon, sulfur, manganese, oxygen, and triangular ferrite can be mixed in a certain proportion to produce a weld melt that is easy to transfer heat during the welding process, so that the entire weld can be penetrated. The steel composition for the production of seamless pipes is only to meet the basic requirements of ASTM. In the absence of the above chemical components, various unstable factors will occur during the welding process, and it is not easy to weld firmly and not penetrate through.