Stainless steel pipesĀ can be divided into stainless steel welded pipes and stainless steel seamless pipes.
Different welding methods can be divided into straight seam welded pipe and spiral welded pipe.Seamless pipe: It uses round steel perforated as the raw material of the tube blank, and is made by the production process of cold rolling, cold drawing or hot extrusion.2.
The difference between the appearance and concentricity of the steel pipeStainless steel welded pipe: Seam pipe is made of precise cold-rolled sheet.
Different welding performanceStainless steel welded pipe: due to differences in material chemical composition.
Pipe strengthThe strength of the pipeline depends on the alloy composition, so seamless stainless steel pipes and seamed stainless steel pipes containing the same alloy and the same heat treatment are essentially the same in strength.After the tensile test and the three-dimensional vibration test, the tearing of the seamed stainless steel pipe almost all occurred in a place far away from the welding point or the heated area.
This is because the weld is less impurity and the nitrogen content is slightly higher, so the strength of the weld is better than other parts.
