Insulated steel pipes are steel pipes that, after being processed by thermal insulation technology, can ensure that the internal temperature and surface temperature of the working steel pipe meet or meet the usage requirements und...
2024-04-07
Heating of tube embryo:Heating is the first step in the rolling process, and its purpose is to bring the tube blank to a temperature suitable for rolling. During the heating process, the heating speed and temperature need to be st...
2024-04-07
1. Welding connectionThis connection method is relatively traditional, its structure is simple, and any form of components can be directly connected. It is not only economical to use materials, but also does not weaken the cross-s...
2024-04-03
Precision rolled pipe is a higher-grade seamless steel pipe product with the characteristics of high precision and high surface finish requirements. In particular, the quality requirements of seamless steel pipes for oil cylinders...
2024-04-03
Carbon steel welded pipes can be divided into three types: Longitudinal submerged arc welded steel pipes (LSAW), Spiral welded steel pipes (SSAW), and Electric resistance welded Steel Pipe (ERW, also called high-frequency straight...
2024-04-02
304 stainless steel pipe commonly used brinell, rockwell, vickers hardness of three indicators to measure its hardness.Brinell hardness (HB): Among stainless steel pipe standards, Brinell hardness is widely used. Its principle is ...
2024-04-02