Round steel use:

1, universal carbon round steel for tensile strength requirements are not too high structure, such as ordinary construction engineering, ordinary standard parts, hot rolled steel, etc. High quality carbon structural steel, which contains harmful elements sulfur, phosphorus content is low (≤0.035%), of which 08, 10, 15, 20, 25 and other grades belong to low carbon steel, its plasticity is good, easy to draw, extrusion, stamping, forging and welding.

2, medium carbon round steel, after conditioning, can obtain excellent mechanical properties, commonly used as more important shaft, fasteners, etc.

3, high carbon round steel, making spring and wear-resistant parts.

4, other alloy round steel, such as 20CrMnTi is an important carburized steel, suitable for important gear and so on. 27SiMn is a high strength and easy to weld steel, which is used where welding is very important. 35CrMo, 42CrMo are high strength steels, used for very important parts, such as engine connecting rod screws, cylinder head screws. Tire screws, etc., for heavy duty vehicles.