Z12CKNDWNb21-20-20

This page provides Z12CKNDWNb21-20-20 datasheet, Z12CKNDWNb21-20-20 mechanical properties, chemical element Z12CKNDWNb21-20-20, technical specifications of Z12CKNDWNb21-20-20 steel material properties. Z12CKNDWNb21-20-20 performance specifications.

AFNOR Z12CKNDWNb21-20-20 AFNOR Z12CKNDWNb21-20-20 Datasheet
Category Type Steel Grade Standard Country Application
Steel GradesValve Steel Z12CKNDWNb21-20-20 AFNOR France Steel Exhaust Valves
NiCr20TiAI
2.4952
NiFe25Cr20NbTi
2.4955
Fe-Ni36
45SiCr90
45WNiCrl80
53NNiMnCr210
80SiNiCr200
80SiNiMoWCr15
Datasheet for:Steel Grades:Valve Steel:Z12CKNDWNb21-20-20

Chemical composition(mass fraction)(wt.%) of the Z12CKNDWNb21-20-20

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) W(%) N(%) Co(%) Nb(%)
0.08-0.16 Max 1.00 1.00-2.00 Max 0.040 Max 0.030 20.0-22.5 19.0-21.0 2.50-3.50 2.00-3.00 0.10-0.20 18.5-21.0 0.75-1.25

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade Z12CKNDWNb21-20-20

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)
977 (≥) 927 (≥) 13 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 234
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 - -     0.34 -  
526 929 - 42.3 342   -  
215 - 12 12.2   142 212
Heat treated : 1251°C - 1536°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
Z12CKNDWNb21-20-20 AFNOR France
The vent valve steel
Z12CKNDWNb21-20-20 AFNOR France
Steel Exhaust Valves
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