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Z 8 CN 25-20 M

France AFNOR NF Z8CN25-20M Foundry products. Austenitic and austeno-ferritic stainless cast steel 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 NF A32-056 France Foundry products. Austenitic and austeno-ferritic stainless cast steel

Chemical composition(mass fraction)(wt.%) of the Z 8 CN 25-20 M

Element Min Max Similar

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)
343 (≥) 746 (≥) 43 14 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

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
22 - -     0.21 -  
742 826 - 44.3 344   -  
768 - 23 44.2   343 313

Heat Treatment of steel grade Z 8 CN 25-20 M

Heat treated : 1865°C - 1861°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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