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12 G 2 SBF

Bulgaria BDS 12G2SBF Low alloy constructional steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 12G2SBF / 12 G 2 SBF
Category Grade Standard Region/Area Standard Content
Metals 12 G 2 SBF BDS 4880 Bulgaria Low alloy constructional steels

Chemical composition(mass fraction)(wt.%) of the 12 G 2 SBF

Element Min Max Similar
V 0.0250 0.1000 -
Si 0.5500 0.9000 -
S - 0.0400 -
P - 0.0400 -
Ni - 0.3500 -
Nb 0.0050 0.0600 -
Mn 1.2000 1.8000 -
Cu - 0.3500 -
Cr - 0.3500 -
C 0.0500 0.1800 -

Mechanical Properties of steel grade 12 G 2 SBF

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)
961 (≥) 651 (≥) 11 44 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade 12 G 2 SBF

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 - -     0.22 -  
627 524 - 44.3 341   -  
698 - 21 13.2   122 113

Heat Treatment of steel grade 12 G 2 SBF

Heat treated : 1476°C - 1586°C

Technological Curves of steel grade 12 G 2 SBF

Cross Reference Table (Equivalent Grade) of 12 G 2 SBF

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