Steel

Structural plate, sections and bars to EN, ASTM, JIS, GB, CSA, AS/NZS, IS and GOST.

Standard fromAnywhere

Reinforcing steel (rebar)

Bars for reinforced concrete. Ductility is the point: the classes differ in how much the bar hardens (Rm/Re) and stretches (Agt) before it breaks.

Grade	Standard	Yield strength	Elongation at maximum force	Evidence
B500A Weldable rebar, ductility class A: 500 MPa characteristic yield, Rm/Re ≥ 1.05, Agt ≥ 2.5 %.	BS 4449:2005+A3:2016	≥ 500 MPa2	≥ 2.5 %3	Confirmed 2 Corroborated 1
B500B Weldable rebar, ductility class B: 500 MPa characteristic yield, Rm/Re ≥ 1.08, Agt ≥ 5 %.	BS 4449:2005+A3:2016	≥ 500 MPa1	≥ 5 %2	Corroborated 2 Single source 1
B500C Weldable rebar, ductility class C: 500 MPa characteristic yield, Rm/Re ≥ 1.15 (< 1.35), Agt ≥ 7.5 %.	BS 4449:2005+A3:2016	≥ 500 MPa1	≥ 7.5 %2	Corroborated 2 Single source 1