Standard for seamless steel pipes

Seamless steel pipe is a long strip of steel with a hollow section and no joints around it. The steel pipe has a hollow section and is widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when the bending and torsional strength is the same. and steel scaffolding used in building construction. Using steel pipe to make ring parts can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jack sets, etc., which have been widely used in steel pipe manufacturing. Steel pipe is also an indispensable material for all kinds of conventional weapons. Gun barrels, gun barrels, etc. are all made of steel pipes. Steel pipes can be divided into round pipes and special-shaped pipes according to the shape of the cross-sectional area. Since the area of the circle is the largest under the condition of equal perimeter, more fluid can be transported with a circular tube. In addition, when the ring section is subjected to internal or external radial pressure, the force is relatively uniform. Therefore, most steel pipes are round pipes.
However, the round pipe also has certain limitations. For example, under the condition of plane bending, the round pipe is not as strong as the square and rectangular pipes, and the square and rectangular pipes are commonly used in the framework of some agricultural machinery and steel and wood furniture. Special-shaped steel pipes with other cross-sectional shapes are also required according to different purposes.


Post time: Aug-02-2022