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Z 4 CNUD 25.8 M

France AFNOR NF Z4CNUD25.8M 铸钢件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z4CNUD25.8M / Z 4 CNUD 25.8 M
Category Grade Standard Region/Area Standard Content
Metals Z 4 CNUD 25.8 M -- France 铸钢件

Chemical composition(mass fraction)(wt.%) of the Z 4 CNUD 25.8 M

Element Min Max Similar
Si - 1.0000 -
Ni 7.0000 9.0000 -
Mo 3.0000 4.0000 -
Mn - 1.0000 -
Cu 1.0000 2.0000 -
Cr 23.5000 25.5000 -
C - 0.0600 -

Mechanical Properties of steel grade Z 4 CNUD 25.8 M

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)
889 (≥) 763 (≥) 24 11 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade Z 4 CNUD 25.8 M

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
14 - -     0.23 -  
132 892 - 21.3 112   -  
868 - 32 44.2   223 444

Heat Treatment of steel grade Z 4 CNUD 25.8 M

Heat treated : 1347°C - 1398°C

Technological Curves of steel grade Z 4 CNUD 25.8 M

Cross Reference Table (Equivalent Grade) of Z 4 CNUD 25.8 M

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