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40 NCD 19

France AFNOR NF 40NCD19 Non standardized steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40NCD19 / 40 NCD 19
Category Grade Standard Region/Area Standard Content
Metals 40 NCD 19 -- France Non standardized steels

Chemical composition(mass fraction)(wt.%) of the 40 NCD 19

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0250 -
P - 0.0300 -
Ni 4.3000 5.0000 -
Mo 0.8000 1.2000 -
Mn 0.1500 0.4500 -
Cr 0.3000 0.6000 -
C 0.3500 0.4300 -

Mechanical Properties of steel grade 40 NCD 19

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)
688 (≥) 192 (≥) 23 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade 40 NCD 19

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
21 - -     0.44 -  
231 616 - 43.3 131   -  
682 - 24 22.2   214 332

Heat Treatment of steel grade 40 NCD 19

Heat treated : 1518°C - 1662°C

Technological Curves of steel grade 40 NCD 19

Cross Reference Table (Equivalent Grade) of 40 NCD 19

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