Is welded steel pipe and welded pipe a kind of steel pipe?

welded steel pipe, also known as welded pipe, is a Steel Pipe made of steel plate or strip steel after crimping and welding. Welded steel pipe has a simple production process, high production efficiency, many varieties and specifications, and less equipment, but its general strength is lower than that of seamless steel pipes. Since the 1930s, with the rapid development of continuous rolling production of high-quality strip steel and the advancement of welding and inspection technology, the quality of welds has been continuously improved, the varieties and specifications of welded steel pipes have been increasing, and more and more fields have replaced non-ferrous steel. Seam steel pipe. Welded steel pipes are divided into straight seam welded pipes and spiral welded pipes according to the form of the weld.

In order to achieve the ideal rust removal effect, the abrasive should be selected according to the hardness of the surface of the straight seam welded pipe equipment, the original rust level, the required surface roughness, the type of coating, etc. It is easier to achieve the ideal rust removal effect by using the mixed abrasive of steel grit and steel shot. Steel shot has the effect of strengthening the steel surface, while steel grit has the effect of etching the steel surface.