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Russia GOST 50G Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 50G / 50G
Category Grade Standard Region/Area Standard Content
Metals 50G GOST 4543 Russia Structural alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 50G

Element Min Max Similar
Si 0.1700 0.3700 -
Mn 0.7000 1.0000 -
C 0.4800 0.5600 -

Mechanical Properties of steel grade 50G

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)
268 (≥) 369 (≥) 13 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade 50G

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 - -     0.41 -  
382 247 - 32.3 412   -  
343 - 21 33.2   232 144

Heat Treatment of steel grade 50G

Heat treated : 1971°C - 1886°C

Technological Curves of steel grade 50G

Cross Reference Table (Equivalent Grade) of 50G

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