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41 CrAlMo 7 4

Hungary MSZ 41CrAlMo74 Nitriding steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 41CrAlMo74 / 41 CrAlMo 7 4
Category Grade Standard Region/Area Standard Content
Metals 41 CrAlMo 7 4 MSZ 17779 Hungary Nitriding steels

Chemical composition(mass fraction)(wt.%) of the 41 CrAlMo 7 4

Element Min Max Similar
Si - 0.5000 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.4000 -
Mo 0.2500 0.4000 -
Mn 0.5000 0.8000 -
Cr 1.5000 1.8000 -
C 0.3800 0.4500 -
Al 0.8000 1.2000 -

Mechanical Properties of steel grade 41 CrAlMo 7 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)
777 (≥) 727 (≥) 42 24 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade 41 CrAlMo 7 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
12 - -     0.14 -  
227 513 - 22.3 134   -  
869 - 23 43.2   123 134

Heat Treatment of steel grade 41 CrAlMo 7 4

Heat treated : 1295°C - 1819°C

Technological Curves of steel grade 41 CrAlMo 7 4

Cross Reference Table (Equivalent Grade) of 41 CrAlMo 7 4

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