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Russia GOST 15G Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 15G / 15G
Category Grade Standard Region/Area Standard Content
Metals 15G GOST 4543 Russia Structural alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 15G

Element Min Max Similar
Si 0.1700 0.3700 -
Mn 0.7000 1.0000 -
C 0.1200 0.1900 -
Si 0.1700 0.3700 -
S - 0.0350 -
P - 0.0350 -
Ni - 0.3000 -
Mn 0.7000 1.0000 -
Cu - 0.3000 -
Cr - 0.3000 -
C 0.1200 0.1900 -

Mechanical Properties of steel grade 15G

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)
231 (≥) 978 (≥) 33 32 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade 15G

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
12 - -     0.43 -  
918 987 - 33.3 442   -  
188 - 12 21.2   311 242

Heat Treatment of steel grade 15G

Heat treated : 1522°C - 1499°C

Technological Curves of steel grade 15G

Cross Reference Table (Equivalent Grade) of 15G

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