Alloy steel pipe is a type of pipe made from carbon steel, alloy structural steel, and stainless heat-resistant steel through hot rolling or cold rolling processes. It is mainly used in high-pressure and high-temperature environments such as power plants, nuclear power plants, high-pressure boilers, and high-temperature superheaters. It has 100% recyclability and plays an important role in the fields of petroleum, natural gas, chemical, and machinery manufacturing.
This pipe adopts a hollow cross-section design, which combines lightweight and high strength characteristics, saving materials and optimizing manufacturing processes. It is widely used in petroleum drilling rods, automotive transmission shafts, construction scaffolding, and military equipment. According to the cross-sectional shape, it can be divided into circular pipes and irregular pipes, among which circular pipes dominate due to their uniform compression resistance and high fluid transport efficiency. The material grade is represented by a combination of element symbols and numbers. For example, 40Cr represents chromium alloy steel with an average carbon content of 0.4%, while 12Cr1MoV indicates the content of elements such as chromium, molybdenum, and vanadium.