Z20CN21-12Az

This page provides Z20CN21-12Az datasheet, Z20CN21-12Az mechanical properties, chemical element Z20CN21-12Az, technical specifications of Z20CN21-12Az steel material properties. Z20CN21-12Az performance specifications.

Category Type Steel Grade Standard Country Application
Steel GradesValve Steel Z20CN21-12Az AFNOR France Steel Exhaust Valves
Z12CKNDWNb21-20-20
2.4952
NiFe25Cr20NbTi
2.4955
Fe-Ni36
45SiCr90
45WNiCrl80
53NNiMnCr210
80SiNiCr200
80SiNiMoWCr15
Datasheet for:Steel Grades:Valve Steel:Z20CN21-12Az

Chemical composition(mass fraction)(wt.%) of the Z20CN21-12Az

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) N(%)
0.15-0.25 0.70-1.30 1.00-1.50 Max 0.040 Max 0.030 20.0-22.0 10.5-12.5 0.15-0.25

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade Z20CN21-12Az

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)
352 (≥) 853 (≥) 44 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 214
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
42 - -     0.31 -  
439 433 - 22.3 134   -  
162 - 42 41.2   331 422
Heat treated : 1697°C - 1393°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
Z20CN21-12Az AFNOR France
Steel Exhaust Valves
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Haihong International Trade (HK) CO., Limited

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Z20CN21-12Az can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
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