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Description

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

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

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

C Si Mn P S Cr Mo Ni
0.22 -0.29 0.10 -0.25 0.50 -0.80 ≤0.020 ≤0.015 0.90 -1.20 0.15 -0.25 ≤0.30

Mechanical Properties of steel grade 25CD4S

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)
428 (≥) 891 (≥) 33 44 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade 25CD4S

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
13 - -     0.32 -  
763 327 - 43.3 244   -  
626 - 13 14.2   444 224

Heat Treatment of steel grade 25CD4S

Heat treated : 1281°C - 1467°C

Technological Curves of steel grade 25CD4S

Relevant standard of 25CD4S


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