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23 CrNiMo 7 4 7

Switzerland SNV 23CrNiMo747 Steels for forged pieces and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 23CrNiMo747 / 23 CrNiMo 7 4 7
Category Grade Standard Region/Area Standard Content
Metals 23 CrNiMo 7 4 7 SNV 210610 Switzerland Steels for forged pieces

Chemical composition(mass fraction)(wt.%) of the 23 CrNiMo 7 4 7

Element Min Max Similar
Si - 0.3000 -
S - 0.0150 -
P - 0.0150 -
Ni 0.9000 1.2000 -
Mo 0.6000 0.8000 -
Mn 0.5000 0.8000 -
Cr 1.7000 2.0000 -
C 0.2000 0.2500 -

Mechanical Properties of steel grade 23 CrNiMo 7 4 7

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)
574 (≥) 551 (≥) 21 11 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade 23 CrNiMo 7 4 7

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
34 - -     0.41 -  
564 696 - 24.3 223   -  
718 - 43 23.2   444 124

Heat Treatment of steel grade 23 CrNiMo 7 4 7

Heat treated : 1792°C - 1126°C

Technological Curves of steel grade 23 CrNiMo 7 4 7

Cross Reference Table (Equivalent Grade) of 23 CrNiMo 7 4 7

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