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Belgium NBN C40R 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: C40R / C 40 R
Category Grade Standard Region/Area Standard Content
Metals C 40 R NBN EN 10083-1 Belgium 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 R

Element Min Max Similar
Si - 0.4000 -
S - 0.0450 -
P - 0.0450 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.5000 0.8000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.4200 0.5000 -
Si - 0.4000 -
S - 0.0450 -
P - 0.0450 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.5000 0.8000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.4200 0.5000 -

Mechanical Properties of steel grade C 40 R

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)
761 (≥) 786 (≥) 42 13 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade C 40 R

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
23 - -     0.42 -  
212 722 - 22.3 242   -  
927 - 14 34.2   122 141

Heat Treatment of steel grade C 40 R

Heat treated : 1495°C - 1884°C

Technological Curves of steel grade C 40 R

Cross Reference Table (Equivalent Grade) of C 40 R

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