Yearly Archives: 2022

The surface heat treatment technology of the 45th thick-walled seamless steel pipe is constantly being innovated, and the current technology has been developed more and more sophisticated. Let's take ...

In urban construction, the role of seamless steel pipes is also very large. This kind of pipeline material is used as a transportation pipeline for groundwater in urban construction, and it is often b...

Welded steel pipe: A steel pipe produced by welding a steel plate or a strip of steel into a cylindrical shape. According to the welding method, it can be pided into arc welded pipe, high frequency or...

During the heating and cooling process of the cold drawn seamless steel pipe, due to the inconsistency between the cooling rate and the time of the surface layer and the core, a temperature difference...

1. Capillary tube The wall thickness of the capillary tube should be uniform, and the surface defects on the inner and outer surfaces should be small; the outer surface polishing and inner hole defect...

Austempering is one of the effective quenching methods for reducing the deformation and cracking of seamed steel pipes (straight seam steel pipes , spiral steel pipes and erw steel pipes) and seamless...

The cleanliness and smoothness of the surface of the seamless steel pipe is a requirement for the selection of a seamless steel pipe. The cleanliness of the surface of the seamless steel pipe has beco...

Pipe fluid seamless pipe cutting methods include shearing, breaking, sawing, flame cutting and anode cutting. Their characteristics are as follows: (1) Flame cutting method: This cutting method has t...

The seamless expansion of the seamless steel tube is pided into an overall thermal expansion treatment, a surface thermal expansion treatment, and a chemical heat treatment. The seamless expansion of ...

Stainless steel seamless pipe is a long strip of steel with a hollow section and no joints around it. The characteristics of stainless steel seamless pipe: First, the thicker the wall thickness of th...