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Z 21 CDNbV 11

France AFNOR NF Z21CDNbV11 Iron and steel. Stainless steel for high temperature application and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z21CDNbV11 / Z 21 CDNbV 11
Category Grade Standard Region/Area Standard Content
Metals Z 21 CDNbV 11 NF A35-578 France Iron and steel. Stainless steel for high temperature application

Chemical composition(mass fraction)(wt.%) of the Z 21 CDNbV 11

Element Min Max Similar
V 0.1000 0.3000 -
Si 0.1000 0.5000 -
S - 0.0150 -
P - 0.0300 -
Ni - 1.0000 -
Nb 0.2500 0.5500 -
N 0.0500 0.1000 -
Mo 0.5000 1.0000 -
Mn 0.3000 0.8000 -
Cr 10.0000 12.0000 -
C 0.1600 0.2500 -
Al - 0.5000 -

Mechanical Properties of steel grade Z 21 CDNbV 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)
266 (≥) 461 (≥) 33 21 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade Z 21 CDNbV 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
44 - -     0.12 -  
117 547 - 13.3 433   -  
296 - 42 43.2   431 224

Heat Treatment of steel grade Z 21 CDNbV 11

Heat treated : 1133°C - 1248°C

Technological Curves of steel grade Z 21 CDNbV 11

Cross Reference Table (Equivalent Grade) of Z 21 CDNbV 11

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