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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)
752 (≥) 161 (≥) 23 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

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
44 - -     0.44 -  
139 725 - 14.3 233   -  
311 - 12 21.2   431 232

Heat Treatment of steel grade 25CD4S

Heat treated : 1449°C - 1494°C

Technological Curves of steel grade 25CD4S

Relevant standard of 25CD4S


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