Seamless steel pipe for export

Seamless steel pipe introduction
Seamless steel pipe is perforated by the whole round steel, and the steel pipe without weld on the surface is called seamless steel pipe. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, pipe jacking, etc. According to the cross-sectional shape, seamless steel pipe is divided into round and special-shaped two kinds, special-shaped pipe has square, oval, triangular, hexagonal, melon-shaped, star-shaped, winged tube a variety of complex shapes. Max diameter up to 900mm,min diameter of 4mm. According to different purposes, there are thick-walled seamless steel pipe and thin-walled seamless steel pipe. Seamless steel pipe is mainly used as petroleum geological drilling pipe, petrochemical cracking pipe, boiler pipe, bearing pipe and high-precision structural steel pipe for automobile, tractor and aviation.

Seamless steel pipe use
Seamless steel pipe is widely used.

1. Seamless steel pipes for general purposes are rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, with a large output, and are mainly used as pipes or structural parts for conveying fluids.

2, according to the use of different types of supply:

A, according to the chemical composition and mechanical properties of supply;

B. Supply according to mechanical properties;

C, according to the hydraulic test supply. The steel pipes supplied according to category a and B shall also be subjected to hydraulic pressure test if they are used to withstand liquid pressure.

3. Seamless pipes for special purposes include seamless pipes for boilers, chemical and electric power, seamless steel pipes for geology and seamless pipes for petroleum.

Seamless steel pipe with a hollow cross-section, a large number of pipes used for conveying fluid, such as oil, natural gas, gas, water and some solid materials such as pipeline. Compared with solid steel such as round steel, steel pipe is lighter in weight when the bending and torsion strength is the same, and it is an economical cross-section steel.

Widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile drive shaft, bicycle frame and steel scaffolding used in construction and other steel pipe manufacturing ring parts, can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing time, has been widely used to manufacture steel pipe.