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The internal and external anti-corrosion practices of spiral steel pipes (SSAW) should meet the requirements of the design institute and the owner. Generally, the internal and external anti-corrosion ...

The three-layer polyethylene (3PE) anticorrosive coating has been widely used in the petroleum pipeline industry due to its good corrosion resistance, water vapor permeability resistance and mechanica...

Spiral steel pipe(SSAW) is also called spiral welded pipe. It is made by rolling low-carbon structural steel or low-alloy structural steel strip according to the angle of the spiral line (forming angl...

Straight seam steel pipes are steel pipes whose welds are parallel to the longitudinal direction of the steel pipe. Usually pided into metric electric welded steel pipe, electric welded thin-walled pi...

Welding residual stress is the temperature difference inside the weldment caused by the heating and cooling process during welding, which leads to inconsistent deformation and internal stress. Welding...

3PE anticorrosive steel pipe base materials include seamless steel pipes, spiral steel pipes and straight seam steel pipes. The three-layer polyethylene (3PE) anticorrosive coating has been widely use...

Seamless steel pipes are widely used in mechanical manufacturing, because the mechanical performance of this steel is very good. But because it is medium carbon steel, the quenching performance is not...

Seamless steel pipes for boilers are high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipes used to manufacture high-pressure and above-pressure water-tube boil...

The submerged arc welding process(SAW) is suitable for the requirements of heavy industrial applications such as pipelines, pressure vessels and tanks, locomotive manufacturing, heavy construction, an...