Z25CNWS20-09

France AFNOR Z25CNWS20-09 Steel Exhaust Valves and Z25CNWS20-09 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Category Type Steel Grade Standard Country Application
Steel GradesValve Steel Z25CNWS20-09 AFNOR France Steel Exhaust Valves
Z12CKNDWNb21-20-20
Z20CN21-12Az
NiFe25Cr20NbTi
2.4955
Fe-Ni36
45SiCr90
45WNiCrl80
53NNiMnCr210
80SiNiCr200
80SiNiMoWCr15
Datasheet for:Steel Grades:Valve Steel:Z25CNWS20-09

Chemical composition(mass fraction)(wt.%) of the Z25CNWS20-09

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) W(%)
0.20-0.30 0.75-1.50 Max 2.00 Max 0.040 Max 0.030 19.5-21.5 8.50-10.5 0.15-0.25

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade Z25CNWS20-09

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)
588 (≥) 737 (≥) 24 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
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 - -     0.23 -  
767 258 - 42.3 322   -  
241 - 44 13.2   414 412
Heat treated : 1492°C - 1174°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
Z25CNWS20-09 AFNOR France
Steel Exhaust Valves
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Z25CNWS20-09 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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Z25CNWS20-09 Bar

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