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Z 9 CKD 11

France AFNOR NF Z9CKD11 Iron and steel. Stainless steel for high temperature application and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z9CKD11 / Z 9 CKD 11
Category Grade Standard Region/Area Standard Content
Metals Z 9 CKD 11 NF A35-578 France Iron and steel. Stainless steel for high temperature application

Chemical composition(mass fraction)(wt.%) of the Z 9 CKD 11

Element Min Max Similar
W - 0.7000 -
V 0.1000 0.3500 -
Ti 0.1500 0.6000 -
Si - 0.7500 -
S - 0.0150 -
P - 0.0350 -
Ni 0.2000 0.8000 -
Nb 0.2000 0.4500 -
N 0.0100 0.0350 -
Mo 0.5000 1.0000 -
Mn 0.6000 1.1500 -
Cr 9.8000 11.2000 -
Co 5.0000 7.0000 -
C 0.0600 0.1100 -
B 0.0050 0.0120 -
Al 0.1500 0.6000 -

Mechanical Properties of steel grade Z 9 CKD 11

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)
566 (≥) 928 (≥) 22 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade Z 9 CKD 11

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
21 - -     0.23 -  
696 824 - 23.3 344   -  
769 - 31 21.2   333 113

Heat Treatment of steel grade Z 9 CKD 11

Heat treated : 1613°C - 1241°C

Technological Curves of steel grade Z 9 CKD 11

Cross Reference Table (Equivalent Grade) of Z 9 CKD 11

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