316 Stainless Steel Seamless Tube and stainless steel welded steel pipes (seam steel pipes) are basically two major categories. According to the outer diameter of the steel pipe, it can be divided into round pipes and special-shaped pipes. Round steel pipes are widely used, but there are also some square, rectangular, semi-circular, hexagonal, equilateral triangle, octagonal and other special-shaped steel pipes. For steel pipes that are subject to fluid pressure, hydraulic tests and radiographic testing are required to check their pressure resistance and quality. Under regular pressure, no leakage, wetting or expansion will be qualified. Some steel pipes must be carried out according to specifications or requirements of the buyer. Hemming experiment, flaring experiment, flattening experiment, etc. Seamless stainless steel pipes, also called stainless steel seamless pipes, are made of steel ingots or solid pipe billets through perforation to make capillary tubes, and then hot-rolled, cold-rolled or cold-rolled.
