Seamless steel tubes are widely used.

1. General-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 pipeline for fluid conveyance or structural components.

2. Offer three types of supplies based on different applications:

A. Supplied by chemical composition and mechanical properties.

B. Supplied by mechanical properties;

C. Supplied for hydrostatic test. Steel pipes supplied as Type A or B, if used to withstand liquid pressure, must also undergo a hydrostatic test.

3. Seamless tubes for specialized use include boiler tubes, chemical and power industry tubes, geological seamless steel pipes, and oil field seamless tubes, among others.

Seamless steel tubes feature hollow cross-sections 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 materials like round bars, they are lighter in weight while maintaining the same bending and torsional strength, making them an economical section steel.

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