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China GB 20MnSi 钢筋混凝土用热轧带肋钢筋 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MnSi / 20MnSi
Category Grade Standard Region/Area Standard Content
Metals 20MnSi GB 1499 China 钢筋混凝土用热轧带肋钢筋

Chemical composition(mass fraction)(wt.%) of the 20MnSi

Element Min Max Similar

Mechanical Properties of steel grade 20MnSi

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
846 (≥) 131 (≥) 14 44 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 20MnSi

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
32 - -     0.23 -  
379 799 - 32.3 434   -  
135 - 44 24.2   241 242

Heat Treatment of steel grade 20MnSi

Heat treated : 1157°C - 1381°C

Technological Curves of steel grade 20MnSi

Cross Reference Table (Equivalent Grade) of 20MnSi

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