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Bulgaria BDS 30G Alloyed constructional steels. Designations and technical requirements and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30G / 30 G
Category Grade Standard Region/Area Standard Content
Metals 30 G BDS 6354 Bulgaria Alloyed constructional steels. Designations and technical requirements

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

Element Min Max Similar

Mechanical Properties of steel grade 30 G

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)
919 (≥) 572 (≥) 11 44 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade 30 G

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 - -     0.34 -  
771 327 - 32.3 243   -  
222 - 42 22.2   214 324

Heat Treatment of steel grade 30 G

Heat treated : 1689°C - 1565°C

Technological Curves of steel grade 30 G

Cross Reference Table (Equivalent Grade) of 30 G

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