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Z 8 CN 25.20 M

France AFNOR NF Z8CN25.20M 铸钢件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z8CN25.20M / Z 8 CN 25.20 M
Category Grade Standard Region/Area Standard Content
Metals Z 8 CN 25.20 M -- France 铸钢件

Chemical composition(mass fraction)(wt.%) of the Z 8 CN 25.20 M

Element Min Max Similar
Si - 1.2000 -
S - 0.0300 -
P - 0.0400 -
Ni 19.0000 22.0000 -
Nb - - -
Mn - 1.5000 -
Cr 23.0000 27.0000 -
C - 0.1000 -

Mechanical Properties of steel grade Z 8 CN 25.20 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)
192 (≥) 945 (≥) 33 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade Z 8 CN 25.20 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
23 - -     0.22 -  
942 945 - 43.3 242   -  
279 - 31 34.2   134 123

Heat Treatment of steel grade Z 8 CN 25.20 M

Heat treated : 1877°C - 1999°C

Technological Curves of steel grade Z 8 CN 25.20 M

Cross Reference Table (Equivalent Grade) of Z 8 CN 25.20 M

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