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70 MoMn 10 4

Germany DIN 70MoMn104 Low alloyed MnMo steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 70MoMn104 / 70 MoMn 10 4
Category Grade Standard Region/Area Standard Content
Metals 70 MoMn 10 4 -- Germany Low alloyed MnMo steel

Chemical composition(mass fraction)(wt.%) of the 70 MoMn 10 4

Element Min Max Similar
V - 0.0600 -
Si 0.2000 0.3500 -
S - 0.0400 -
P - 0.0400 -
Ni - 0.2000 -
Mo 0.8000 1.1000 -
Mn 0.7000 1.0500 -
Cu - 0.2000 -
Cr - 0.2800 -
C 0.6300 0.7700 -
Al 0.0200 - -

Mechanical Properties of steel grade 70 MoMn 10 4

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)
699 (≥) 738 (≥) 42 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade 70 MoMn 10 4

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
11 - -     0.44 -  
652 991 - 23.3 423   -  
895 - 13 12.2   133 422

Heat Treatment of steel grade 70 MoMn 10 4

Heat treated : 1428°C - 1324°C

Technological Curves of steel grade 70 MoMn 10 4

Cross Reference Table (Equivalent Grade) of 70 MoMn 10 4

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