Yearly Archives: 2022

According to the size of the caliber, there is also a clear distinction between the use of seamless steel tubes. From the current market point of view, there are more than ten sizes of seamless steel ...

The first part of the fire-resistant spiral steel pipe copolymer adhesive part of the functional group and the epoxy primer epoxy group can react to form hydrogen bonds or chemical bonds, so that the ...

Inspection of steel pipes generally includes: inspection of geometrical dimensions and surface quality; chemical composition, mechanical properties, process performance, inspection of high and low-fol...

Galvanized steel pipes: In order to improve the corrosion resistance of steel pipes, general steel pipes (black pipes) are galvanized. Galvanized steel pipes are pided into hot-dip galvanizing and ele...

Pipeline pickling refers to a series of technical treatment processes on the inner surface of a pipe according to a specific process procedure using an acid or alkali solution with a small amount of c...

1) The seamless pipe is a long strip of steel with a hollow section and no joints around it. It is a steel pipe without seams, hot rolling or cold drawing process. Seamless steel pipe characteristic i...

In general, hot rolling has better mechanical properties than cold rolling. The hot rolled steel has improved tensile strength, yield strength, ductility and toughness. In addition, it is important th...

The Use of Hot Dip Galvanized Steel Pipe Hot-dip galvanized steel pipes are used in construction, machinery, coal, chemical, electric power, railway vehicles, automobile industry, highways, br...

Overview of two steel pipe processes Cold drawn (rolled) seamless steel pipe: round tube billet → heating → perforation → head → annealing → pickling → oiling (copper plating) → multi-pass cold draw...

Common Annealing Process Annealing is a metal heat treatment process in which the metal is slowly heated to a certain temperature for a sufficient period of time and then cooled at a suitable rat...