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Russia GOST 30H3MF Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30H3MF / 30H3MF
Category Grade Standard Region/Area Standard Content
Metals 30H3MF GOST 4543 Russia Structural alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 30H3MF

Element Min Max Similar
V 0.0600 0.1200 -
Si 0.1700 0.3700 -
Mo 0.2000 0.3000 -
Mn 0.3000 0.6000 -
Cr 2.3000 2.7000 -
C 0.2700 0.3400 -

Mechanical Properties of steel grade 30H3MF

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)
768 (≥) 287 (≥) 23 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade 30H3MF

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
33 - -     0.41 -  
984 898 - 42.3 314   -  
356 - 44 31.2   233 323

Heat Treatment of steel grade 30H3MF

Heat treated : 1445°C - 1371°C

Technological Curves of steel grade 30H3MF

Cross Reference Table (Equivalent Grade) of 30H3MF

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