Hot-rolled steel pipe is a steel pipe product that is produced by rolling a billet under high temperature conditions. Hot-rolled steel pipe has the characteristics of high strength, corrosion resistance and high temperature resistance, and is widely used in petroleum, chemical industry, aviation, aerospace, machinery manufacturing and other fields. Hot-rolled steel pipes have a wide range of diameters, and steel pipes of various specifications can be produced from small to large to meet the needs of different industries.