Available 24/7 at sales@steel-grades.com

Z12CKNDWNb21-20-20

Description

France AFNOR Z12CKNDWNb21-20-20 Steel Exhaust Valves and Z12CKNDWNb21-20-20 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Valve Steel: Z12CKNDWNb21-20-20
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

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 of steel 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)
451 (≥) 762 (≥) 33 31 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade Z12CKNDWNb21-20-20

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 - -     0.22 -  
535 158 - 32.3 421   -  
673 - 14 41.2   324 313

Heat Treatment of steel grade Z12CKNDWNb21-20-20

Heat treated : 1974°C - 1241°C

Technological Curves of steel grade Z12CKNDWNb21-20-20

Cross Reference Table (Equivalent Grade) of Z12CKNDWNb21-20-20

Grade Standard Country Application
Z12CKNDWNb21-20-20 AFNOR France The vent valve steel
Z12CKNDWNb21-20-20 AFNOR France Steel Exhaust Valves

Available Suppliers

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
  • Do you supply this Z12CKNDWNb21-20-20?
  • List your company on S&G now? Join
  • Non-paying users only
Top