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Russia GOST 12HN2 Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 12HN2 / 12HN2
Category Grade Standard Region/Area Standard Content
Metals 12HN2 GOST 4543 Russia Structural alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 12HN2

Element Min Max Similar
Si 0.1700 0.3700 -
Ni 1.5000 1.9000 -
Mn 0.3000 0.6000 -
Cr 0.6000 0.9000 -
C 0.0900 0.1600 -

Mechanical Properties of steel grade 12HN2

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)
892 (≥) 245 (≥) 23 12 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade 12HN2

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
34 - -     0.24 -  
894 677 - 43.3 423   -  
522 - 21 11.2   324 134

Heat Treatment of steel grade 12HN2

Heat treated : 1623°C - 1853°C

Technological Curves of steel grade 12HN2

Cross Reference Table (Equivalent Grade) of 12HN2

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