Stainless steel pipe is a kind of hollow long round steel, which is widely used in petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and other industrial pipelines and mechanical structural components. Stainless steel pipe is a kind of hollow long round steel, which is widely used in petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and other industrial pipelines and mechanical structural components.



Stainless steel pipes are divided into ordinary carbon steel pipes, high-quality carbon steel pipes, alloy steel pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes and bimetal composite pipes, coating and coating pipes to save precious metals and meet special requirements. There are many kinds of stainless steel pipes with different purposes, different technical requirements and different production methods. The outer diameter range of steel pipe currently produced is 0.1 to 4500mm, and the wall thickness range is 0.01 to 250mm. In order to distinguish its characteristics, steel pipes are usually classified according to the following methods.



Stainless steel pipe can be divided into seamless pipe and welded pipe according to production mode. Seamless steel pipe can be divided into hot-rolled pipe, cold-rolled pipe, cold drawn pipe and extruded pipe. Cold drawing and cold rolling are secondary processing of steel pipe; welded pipe can be divided into straight welded pipe and spiral welded pipe.