Anti-corrosion spiral steel pipe also has the characteristics of convenient transportation and reliable connection. It adopts the double protection measures of external anti-corrosion and internal rubber lining, which can make the pipeline lighter during use and more convenient to install, which not

The surface quenching and tempering heat treatment of straight seam welded steel pipe is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness, and effective hardened layer depth. Vickers hardness tester can be used for hardness

High-pressure seamless steel pipes and high-pressure boiler tubes are a type of boiler tubes that belong to the seamless steel pipes category. The manufacturing method is the same as that of the seamless pipe, but there are strict requirements on the steel type used to manufacture the steel pipe. Hi

1. The purchase of straight seam steel pipe needs to know the type of steel pipe1) By type: straight seam steel pipe, seamless steel pipe, spiral steel pipe, etc.2) Section shape classification of straight seam steel pipe classification: square pipe, rectangular pipe, oval pipe, flat oval pipe, semi