Seamless steel pipe for machining is one of the most commonly used types of seamless steel pipes. Seamless steel pipe for machining has a hollow section with no welds from start to finish. Compared with solid steel such as round steel, seamless steel pipe is lighter in weight when the bending and torsional strength is the same. It is an economical section steel. Seamless steel pipe for machining is widely used in the manufacture of structural parts and mechanical parts, such as oil drills. poles, bicycle racks and steel scaffolding used in building construction, etc.

Seamless steel pipe for machining manufactures annular parts, which 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.
Seamless steel pipe for machining is also an indispensable material for all kinds of conventional weapons, and the barrels, barrels, etc. are all made of steel pipes. Seamless steel pipe for machining can be divided into round pipe and special-shaped pipe 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.