What is seamless Torque tube ？

seamless Rectangular Pipe It is a kind of long steel with hollow section and no joints around. The steel pipe has a hollow section, and is widely used as a pipeline to escort fluids, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe is lighter when its bending and torsional strength is the same. It is a kind of steel with economic section and is widely used to manufacture structural and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction. Manufacturing annular parts with steel pipes can improve the application rate of materials, simplify the manufacturing process, and save materials and processing hours, such as rolling bearing rings, jack sleeves, etc. Currently, steel pipes are widely used for manufacturing. Steel pipe is also an indispensable material for various conventional weapons. Gun barrel and barrel should be made of steel pipe. The steel pipe can be divided into round pipe and profiled pipe according to the shape of cross sectional area. Since the circle area is large under the condition of equal perimeter, more fluid can be transported by using circular tubes. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform, so most steel pipes are round pipes. However, circular pipes also have corresponding limitations. For example, under the condition of plane bending, circular pipes are not as strong as square and rectangular pipes in bending strength. Square and rectangular pipes are commonly used for some agricultural machinery frameworks, steel and wood furniture, etc.