The heat treatment methods of seamless steel pipes are spheroidizing annealing and isothermal annealing. What are their functions and purposes?

According to statistics of seamless steel pipe technical data, 80% of steel pipe fractures are caused by fatigue.

In order to accurately determine the tempering temperature in heat treatment of seamless steel pipe, it is necessary to determine the tempering temperature according to the tempering color.

In the process of production, machining, welding, testing and heat treatment of seamless steel pipes, the surface area of ​​seamless steel pipes (carbon copper pipes, stainless steel pipes) will accumulate iron oxide, welding slag, grease and other dirt, making the seamless steel pipe resistant to Corrosion performance becomes stronger.

Precision steel pipe is a product that has appeared in recent years. The main feature is that the inner hole and outer wall dimensions have strict tolerances and roughness.

Straight seam welded steel pipe is mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction.