Seamless steel tubes are widely used. General-purpose seamless steel tubes are rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipelines or structural parts to transport fluids.

Seamless steel tubes have hollow cross-sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, coal gas, water, and certain solid materials. Compared with solid steels such as round steel, steel pipes are lighter in weight and have a lower flexural and torsional strength, and are an economic cross-section steel.

Seamless steel tubes are widely used in the manufacture of structural parts and mechanical parts, such as petroleum drill pipes, automobile drive shafts, bicycle racks and steel scaffolds used in construction, etc., to make ring parts with steel pipes, which can improve material utilization, simplify the manufacturing process, and save Material and processing hours.