Seamless steel pipes are widely used.
- Seamless steel pipes for general purposes are rolled from ordinary carbon structural steel, low alloy structural steel, or alloy structural steel, with the highest yield and mainly used as pipelines or structural parts for conveying fluids.
- Supply is divided into three categories based on different purposes:
A. Supplied according to chemical composition and mechanical properties;
B. Supplied according to mechanical properties;
C. Supply according to hydraulic test. Steel pipes supplied in categories A and B, if used to withstand liquid pressure, must also undergo hydraulic testing.
- There are various types of seamless pipes for specialized purposes, such as seamless pipes for boilers, seamless pipes for chemical power, seamless steel pipes for geology, and seamless pipes for petroleum.
Seamless steel pipes have a hollow cross-section and are widely used as pipelines for transporting fluids, such as oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipes have a lighter weight when their bending and torsional strength are the same, making them an economic cross-section steel.
Widely used in the manufacturing of structural and mechanical parts, such as petroleum drill pipes, automotive transmission shafts, bicycle frames, and steel scaffolding used in construction, circular parts are made of steel pipes, which can improve material utilization, simplify manufacturing processes, save materials and processing time, and have been widely used in steel pipe manufacturing.