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Z 21 CN 17

France AFNOR NF Z21CN17 工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z21CN17 / Z 21 CN 17
Category Grade Standard Region/Area Standard Content
Metals Z 21 CN 17 NF A35-590 France 工具钢

Chemical composition(mass fraction)(wt.%) of the Z 21 CN 17

Element Min Max Similar
Si - 1.0000 -
Ni 1.5000 2.5000 -
Mn - 1.0000 -
Cr 16.0000 18.0000 -
C 0.1700 0.2500 -

Mechanical Properties of steel grade Z 21 CN 17

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)
929 (≥) 515 (≥) 14 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade Z 21 CN 17

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
24 - -     0.24 -  
413 161 - 33.3 122   -  
477 - 12 34.2   314 211

Heat Treatment of steel grade Z 21 CN 17

Heat treated : 1679°C - 1871°C

Technological Curves of steel grade Z 21 CN 17

Cross Reference Table (Equivalent Grade) of Z 21 CN 17

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