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Russia GOST 25G2S Hot-rolled steel for reinforcement of ferroconcrete structures. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25G2S / 25G2S
Category Grade Standard Region/Area Standard Content
Metals 25G2S GOST 5781 Russia Hot-rolled steel for reinforcement of ferroconcrete structures. Specifications

Chemical composition(mass fraction)(wt.%) of the 25G2S

Element Min Max Similar
Si 0.6000 0.9000 -
S - 0.0450 -
P - 0.0400 -
Ni - 0.3000 -
Mn 1.2000 1.6000 -
Cu - 0.3000 -
Cr - 0.3000 -
C 0.2000 0.2900 -

Mechanical Properties of steel grade 25G2S

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)
343 (≥) 972 (≥) 31 41 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade 25G2S

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
43 - -     0.44 -  
729 498 - 44.3 433   -  
226 - 23 42.2   434 134

Heat Treatment of steel grade 25G2S

Heat treated : 1528°C - 1134°C

Technological Curves of steel grade 25G2S

Cross Reference Table (Equivalent Grade) of 25G2S

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