Stainless seamless steel pipe is a relatively common material in production, and is widely used in industrial transportation pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrumentation, etc.,among them, the thick wall of stainless seamless steel pipe is not well cooled uniformly. How to deal with this problem?

The carbon in the cs seamless pipe is very easy to react with oxygen at high temperature, Fe0+C→Fe+C0, which reduces Fe0; the reduced Fe will be oxidized again, and then reduced again.

There are various reasons for the longitudinal crack of the welded pipe, but the fundamental reason is that the welded pipe after cold drawing has a high residual stress field.

In the actual production process, the black steel seamless pipe will be polished and its coating process will be carried out to improve the corrosion resistance of the steel pipe.

The q345b welded pipe needs to be subjected to water pressure, bending, flattening and other experiments, and has certain requirements on the surface quality. Usually, the delivery length is 4-10m, and it is often required to deliver to a fixed length (or multiple feet).

Galvanized cold drawn seamless tubing has strong corrosion resistance, strength and rigidity, and is widely used in gas, heating and water transportation pipelines.