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France AFNOR NF 25CD4-M 一般工程使用的钢铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25CD4-M / 25 CD4-M
Category Grade Standard Region/Area Standard Content
Metals 25 CD4-M NF A32-054 France 一般工程使用的钢铸件

Chemical composition(mass fraction)(wt.%) of the 25 CD4-M

Element Min Max Similar

Mechanical Properties of steel grade 25 CD4-M

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)
849 (≥) 138 (≥) 31 23 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade 25 CD4-M

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
42 - -     0.32 -  
624 336 - 12.3 224   -  
377 - 34 43.2   132 224

Heat Treatment of steel grade 25 CD4-M

Heat treated : 1636°C - 1258°C

Technological Curves of steel grade 25 CD4-M

Cross Reference Table (Equivalent Grade) of 25 CD4-M

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