Stainless steel square pipe is a kind of hollow long steel. Because the section is square, it is called square tube. A large number of pipes are used to transport fluids.
Stainless steel pipe is a kind of hollow long round steel. In addition, when the bending and torsional strength are the same, the weight is light.
Stainless steel pipe has high pres- sure resistance, good toughness and high surface brightness (the surface brightness of the steel pipe deter- mined by the surface grade of the steel plate).
It is widely used in industrial trans- mission pipelines and mechanical structural parts such as petroleum, chemical industry, medical industry, light industry, machinery and instruments.