SD345,SD390,SD490 rebar building material

Deformed bars are ribbed reinforcing bars, usually with two longitudinal ribs and transverse ribs distributed evenly along the length {TodayHot}. The shape of the transverse ribs is spiral, herringbone, crescent-shaped three. The number of millimeters in nominal diameter. The nominal diameter of the deformed bar corresponds to the nominal diameter of the circular bar of equal cross-section. The nominal diameter of the rebar is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32, and 40 mm. Reinforced concrete in the main tensile stress. Deformation of the ribs due to the role of ribs, and concrete have a greater ability to bond, which can better withstand external forces