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Russia GOST 20HN2M Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20HN2M / 20HN2M
Category Grade Standard Region/Area Standard Content
Metals 20HN2M GOST 4543 Russia Structural alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 20HN2M

Element Min Max Similar
Si 0.1700 0.3700 -
Ni 1.6000 2.0000 -
Mo 0.2000 0.3000 -
Mn 0.4000 0.7000 -
Cr 0.4000 0.6000 -
C 0.1500 0.2200 -

Mechanical Properties of steel grade 20HN2M

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)
893 (≥) 938 (≥) 12 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 20HN2M

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
41 - -     0.42 -  
375 173 - 22.3 234   -  
283 - 11 14.2   141 124

Heat Treatment of steel grade 20HN2M

Heat treated : 1255°C - 1697°C

Technological Curves of steel grade 20HN2M

Cross Reference Table (Equivalent Grade) of 20HN2M

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