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France AFNOR NF C40E 淬火和回火钢 - 第1部分:一般交货技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C40E / C 40 E
Category Grade Standard Region/Area Standard Content
Metals C 40 E NF EN 10083-1 France 淬火和回火钢 - 第1部分:一般交货技术条件

Chemical composition(mass fraction)(wt.%) of the C 40 E

Element Min Max Similar
Si - 0.4000 -
S - 0.3500 -
P - 0.0300 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.5000 0.8000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.3700 0.4400 -
Si - 0.4000 -
S - 0.0350 -
P - 0.0350 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.5000 0.8000 -
Cr - 0.4000 -
C 0.3700 0.4400 -

Mechanical Properties of steel grade C 40 E

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)
198 (≥) 263 (≥) 44 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade C 40 E

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 - -     0.41 -  
121 478 - 22.3 432   -  
124 - 32 23.2   114 331

Heat Treatment of steel grade C 40 E

Heat treated : 1714°C - 1469°C

Technological Curves of steel grade C 40 E

Cross Reference Table (Equivalent Grade) of C 40 E

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