Seamless steel pipes 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 pipes for conveying fluids or structural components.

2Supply is categorized into three types based on different applications:

aSupplied based on chemical composition and mechanical properties.

bSupplied according to mechanical properties;

cSupplied as per hydrostatic test.a、bSteel pipes of this type, used for withstanding liquid pressure, must also undergo hydrostatic testing.

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

Seamless steel pipes feature hollow 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 products like round bars, seamless steel pipes are lighter in weight while offering the same bending and torsional strength, making them an economical cross-sectional steel.

Broadly 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 manufacturing of annular parts from steel pipes enhances material utilization, simplifies production processes, saves materials and processing time, and has been widely adopted for this purpose.