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France AFNOR NF 42CDV4 Iron and steel. Heat treatable steels for externally threaded high performance fasteners for use at high temperatures and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 42CDV4 / 42 CDV 4
Category Grade Standard Region/Area Standard Content
Metals 42 CDV 4 NF A35-558 France Iron and steel. Heat treatable steels for externally threaded high performance fasteners for use at high temperatures

Chemical composition(mass fraction)(wt.%) of the 42 CDV 4

Element Min Max Similar
V 0.2500 0.3500 -
Si 0.2000 0.3500 -
S - 0.0300 -
P - 0.0300 -
Mo 0.5000 0.6500 -
Mn 0.4500 0.7000 -
Cr 0.8000 1.1500 -
C 0.3600 0.4400 -
V 0.2500 0.3500 -
Si 0.2000 0.3500 -
S - 0.0300 -
P - 0.0300 -
Mo 0.5000 0.6500 -
Mn 0.4500 0.7000 -
Cr 0.8000 1.1500 -
C 0.3600 0.4400 -

Mechanical Properties of steel grade 42 CDV 4

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)
889 (≥) 575 (≥) 32 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade 42 CDV 4

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
14 - -     0.33 -  
542 143 - 32.3 213   -  
693 - 41 14.2   331 143

Heat Treatment of steel grade 42 CDV 4

Heat treated : 1113°C - 1337°C

Technological Curves of steel grade 42 CDV 4

Cross Reference Table (Equivalent Grade) of 42 CDV 4

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