Compared with solid steel such as round steel, steel tube is a kind of economic section steel, which is widely used in the manufacture of structural parts and mechanical parts, steel scaffolding used in construction, etc.
Using steel tube to make ring parts can improve material utilization, simplify manufacturing process, save material and processing time, such as rolling bearing ring, jack sleeve, etc. At present, steel tube has been widely used for manufacturing. Steel tube is also an indispensable material for all kinds of conventional weapons. Steel tube is used to manufacture barrels.
According to the different cross-sectional shapes, steel tube can be divided into circular tube and special-shaped tube. Because the circle area is the largest under the condition of the same circumference, more fluid can be transported by the circular tube. In addition, when the ring section bears internal or external radial pressure, the force is more uniform.