The seamless steel pipe is made of perforated whole round steel, and the steel pipe without weld seam on the surface is called seamless steel pipe.
The types of seamless steel pipes are as follows:
1. Seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes according to different production methods.
2. Seamless steel pipes are classified according to their shapes and can be divided into round pipes and special-shaped pipes. In addition to square tubes and rectangular tubes, special-shaped tubes also include oval tubes, semicircular tubes, triangular tubes, hexagonal tubes, convex-shaped tubes, plum-shaped tubes, etc.
3. According to different materials, seamless steel pipes can be divided into ordinary carbon structural pipes, low-alloy structural pipes, high-quality carbon structural pipes, alloy structural pipes, stainless steel pipes, etc.
4. According to the special purpose, seamless steel pipes can be divided into boiler pipes, geological pipes, oil pipes, etc.
Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industries, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation.
