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

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

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

Element Min Max Similar

Mechanical Properties of steel grade 20MnSiNb

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)
789 (≥) 562 (≥) 41 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 20MnSiNb

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
31 - -     0.22 -  
721 994 - 44.3 412   -  
861 - 42 22.2   121 222

Heat Treatment of steel grade 20MnSiNb

Heat treated : 1451°C - 1162°C

Technological Curves of steel grade 20MnSiNb

Cross Reference Table (Equivalent Grade) of 20MnSiNb

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