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Germany DIN 30MnB4 Low alloyed MnCrB steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30MnB4 / 30MnB4
Category Grade Standard Region/Area Standard Content
Metals 30MnB4 -- Germany Low alloyed MnCrB steel

Chemical composition(mass fraction)(wt.%) of the 30MnB4

Element Min Max Similar

Mechanical Properties of steel grade 30MnB4

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)
923 (≥) 455 (≥) 21 44 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade 30MnB4

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 - -     0.33 -  
487 332 - 11.3 131   -  
584 - 43 11.2   343 141

Heat Treatment of steel grade 30MnB4

Heat treated : 1231°C - 1565°C

Technological Curves of steel grade 30MnB4

Cross Reference Table (Equivalent Grade) of 30MnB4

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