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

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

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

Element Min Max Similar
Si 0.9000 1.2000 -
Mn 0.8000 1.1000 -
Cr 0.8000 1.1000 -
C 0.2800 0.3400 -
Si 0.9000 1.2000 -
Mn 0.8000 1.1000 -
Cr 0.8000 1.1000 -
C 0.2800 0.3400 -
Si 0.9000 1.2000 -
Mn 0.8000 1.1000 -
Cr 0.8000 1.1000 -
C 0.2800 0.3400 -

Mechanical Properties of steel grade 30HGSA

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)
528 (≥) 795 (≥) 42 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade 30HGSA

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 - -     0.22 -  
866 958 - 31.3 432   -  
698 - 12 14.2   131 244

Heat Treatment of steel grade 30HGSA

Heat treated : 1279°C - 1325°C

Technological Curves of steel grade 30HGSA

Cross Reference Table (Equivalent Grade) of 30HGSA

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