Stainless steel thick wall pipe is a kind of steel♠ pipe with hollow inside, a certain cross-section and no joints aro≈und. Usually, the ratio of the outer diameter of the steel pipe to the wall thickness of the± steel pipe is less than 20, which is called stainless steel÷ thick wall pipe. So do you know the manufacturing technology of stεainless steel thick wall pipe?
The manufacturing process of thick wall stainless steel pi✘pe has two kinds of hot rolling and cold rolling, and the cold rol₩ling process is more complicated than the hot rolling process.

Cold rolling means that the pipe is first rolled by three rolls, and then pressed to establisδh the diameter, after treatment, and then check whether there is a crack on the surface of t™he pipe, the whole steel pipe must be cut, the tube blank is long, and then after annealin×g and pickling. After the inspection, if the stainless steel thick wall tube will foam, it means Ωthat it is unqualified and should be re-produced.

Hot rolling is the heat treatment of the steel pipe, the number of such steel pipe detection sh ould usually be manually inspected, because in the inspection process should be o✔iled hot rolled steel pipe, and then after many cold drawing and perforation test©, if the hole distance is too large should be re-corrected, conσfirm the error can be formally labeled.

The above is about the stainless steel thick wall pipe manu↑facturing technology introduction.