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Bulgaria BDS 42931 Rails of vacuum-treated steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 42931 / 42931
Category Grade Standard Region/Area Standard Content
Metals 42931 BDS 10786 Bulgaria Rails of vacuum-treated steels

Chemical composition(mass fraction)(wt.%) of the 42931

Element Min Max Similar

Mechanical Properties of steel grade 42931

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)
575 (≥) 234 (≥) 11 13 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 42931

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
42 - -     0.34 -  
384 963 - 43.3 114   -  
655 - 43 21.2   243 231

Heat Treatment of steel grade 42931

Heat treated : 1871°C - 1923°C

Technological Curves of steel grade 42931

Cross Reference Table (Equivalent Grade) of 42931

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