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X 3 CrNiMnMoN 24-21-7-4

Germany DIN X3CrNiMnMoN24-21-7-4 Alloyed CrNiMnMo Steel and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 3 CrNiMnMoN 24-21-7-4 -- Germany Alloyed CrNiMnMo Steel

Chemical composition(mass fraction)(wt.%) of the X 3 CrNiMnMoN 24-21-7-4

Element Min Max Similar
V - 0.8000 -
Si - 1.0000 -
S - 0.0120 -
P - 0.0250 -
Ni 19.0000 24.0000 -
Nb - 0.3000 -
N 0.2000 0.5000 -
Mo 3.4000 4.2000 -
Mn 4.5000 9.0000 -
Cr 22.5000 25.5000 -
C - 0.0500 -

Mechanical Properties of steel grade X 3 CrNiMnMoN 24-21-7-4

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)
484 (≥) 479 (≥) 31 33 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade X 3 CrNiMnMoN 24-21-7-4

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 - -     0.24 -  
988 132 - 23.3 141   -  
996 - 41 42.2   443 442

Heat Treatment of steel grade X 3 CrNiMnMoN 24-21-7-4

Heat treated : 1918°C - 1882°C

Technological Curves of steel grade X 3 CrNiMnMoN 24-21-7-4

Cross Reference Table (Equivalent Grade) of X 3 CrNiMnMoN 24-21-7-4

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