Hot-rolled Rebar Introduction
Rebar is also known as hot rolled ribbed steel bar. .Ordinary hot rolled reinforced its brand by the HRB and brand the yield point of the minimum.H(Hotrolled)R(Ribbed)B(Bars)Hot-rolled Rebar HRB335(20MnSi),HRB400(20MnSiV,20MnSiNb,20Mnti),HRB500.
Refers to the reinforced concrete with steel reinforced concrete reinforcement with straight or plate of strip steel, its appearance is divided into two kinds, light round steel and deformed steel delivery status for the straight bar and wire rod in two. chinacoal05
Rebar in concrete main tensile stress. Deformed bars as a result of the action of rib, and concrete have larger bonding ability, thus better able to withstand the role of external force. Steel is widely used in all kinds of building structure, especially large, heavy, light thin wall and high-rise building structure.
Weight calculation formula:W= 0.00617 ×d×d d= section diametermm
Hot-rolled Rebar Parameters
Marks |
Nominal diameter a mm |
Bending test |
HRB335 |
6-25 28-50 |
3a 4a |
HRB400 |
6-25 28-50 |
4a 5a |
HRB500 |
6-25 28-50 |
6a 7a |