Alloy steel pipe is a pipe made of alloy steel with high strength, corrosion resistance and wear resistance. Alloy steel pipes are usually used in piping systems under high temperature, high pressure, chemical corrosion or other harsh environments.Alloy steel pipes are widely used in petroleum, chemical, aviation, aerospace, pharmaceutical, food and other industries. The production process and quality control requirements of alloy steel pipe are very high, so the price is relatively high. Common alloy steel pipes include CrMo alloy steel pipes, NiCrMo alloy steel pipes, Inconel alloy steel pipes, etc. Standard API, ASTM, BS, DIN, GB, JIS Outer Diameter 21.3mm-660mm Wall Thickness 0.5mm-20mm Dia Tolerance Control with in the standard, OD:±1%, WT:±10% Materials ST37-2, DIN 162…