Seamless steel tubes have a wide range of applications.

1General-purpose seamless steel tubes are rolled from ordinary carbon structural steel, low-alloy structural steel, or alloy structural steel, with high production volume. They are primarily used as pipelines for conveying fluids or structural components.

2Supplied in three categories based on different applications:

aSupplied by chemical composition and mechanical properties.

bSupplied according to mechanical properties;

cSupplied for hydrostatic testing.a、bSteel pipes of similar supply, used to withstand liquid pressure, must also undergo hydrostatic testing.

3Special-purpose seamless pipes include boiler seamless pipes, chemical and power industry seamless pipes, geological seamless steel pipes, and oilfield seamless pipes, among others.

Seamless steel tubes feature a hollow cross-section and are extensively used as pipelines for conveying fluids, such as oil, natural gas, coal gas, water, and certain solid materials. Compared to solid steel products like round bars, they are lighter in weight while maintaining the same bending and torsional strength, making them an economical section steel.

Extensively used in the manufacturing of structural and mechanical components, such as oil drill pipes, automotive drive shafts, bicycle frames, and steel scaffolding for construction projects, the production of circular parts from steel pipes enhances material utilization, streamlines manufacturing processes, and saves on materials and processing time. Steel pipes are widely employed for this purpose.