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Bulgaria BDS 45G2 Alloyed constructional steels. Designations and technical requirements and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 45G2 / 45 G 2
Category Grade Standard Region/Area Standard Content
Metals 45 G 2 BDS 6354 Bulgaria Alloyed constructional steels. Designations and technical requirements

Chemical composition(mass fraction)(wt.%) of the 45 G 2

Element Min Max Similar

Mechanical Properties of steel grade 45 G 2

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)
484 (≥) 285 (≥) 14 23 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade 45 G 2

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 - -     0.14 -  
931 344 - 44.3 332   -  
323 - 21 32.2   412 443

Heat Treatment of steel grade 45 G 2

Heat treated : 1527°C - 1732°C

Technological Curves of steel grade 45 G 2

Cross Reference Table (Equivalent Grade) of 45 G 2

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