The shape of the transverse ribs is spiral, herringbone, and crescent. It is expressed in millimeters of the nominal diameter. The nominal diameter of ribbed steel bars is equivalent to the nominal diameter of smooth round steel bars with equal cross-sections.
The nominal diameter of the steel bars is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32, and 40 mm. Ribbed steel bars mainly bear tensile stress in concrete. Ribbed steel bars have greater bonding capacity with concrete due to the action of ribs, so they can better withstand external forces. Ribbed steel bars are widely used in various building structures, especially large, heavy, light thin-walled and high-rise building structures.

1.The intensity is high,
2.Good plasticity and toughness,
3.Easy processing,
4.Large friction with concrete

Rebar is widely used in building, bridge, road and other civil engineering construction. Large to highways, railways, Bridges, culverts, tunnels, flood control, DAMS and other public facilities, small to the foundation of housing construction, beams, columns, walls, plates, rebar steel are indispensable structural materials. With the deepening of China's urbanization, infrastructure construction and the booming development of real estate demand for rebar steel is strong.