France AFNOR AIR 9160 C 25CD4S AIR 9160 25CD4S and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Category Class Grade Standard Country Application
Steel GradesSpecialsteel 25CD4S AFNOR France AIR 9160 25CD4S
Datasheet for:Steel Grades:Specialsteel:25CD4S

Chemical composition(mass fraction)(wt.%) of the 25CD4S

Elements Min.(≥) Max.(≤)
C 0.22 0.29
Si 0.10 0.25
Mn 0.50 0.80
P - 0.020
S - 0.015
Cr 0.90 1.20
Mo 0.15 0.25
Ni - 0.30

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade 25CD4S

Rp0.2 (MPa)
Rm (MPa)
KV/Ku (J)
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
266 (≥) 491 (≥) 44 12 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Modulus of elasticity
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
Specific thermal capacity
Specific electrical resistivity
(Ω mm²/m)
Poisson’s coefficient, ν
22 - -     0.12 -  
266 913 - 12.3 314   -  
484 - 31 21.2   414 211
Heat treated : 1726°C - 1138°C
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
25CD4S AFNOR France
AIR 9160 25CD4S

Relevant standard

Standard No. Description Download
AIR 9160 C
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