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43 CrMo 4

France AFNOR NF 43CrMo4 Iron and steel. Steels for bearings. Types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 43CrMo4 / 43 CrMo 4
Category Grade Standard Region/Area Standard Content
Metals 43 CrMo 4 NF A35-565 France Iron and steel. Steels for bearings. Types

Chemical composition(mass fraction)(wt.%) of the 43 CrMo 4

Element Min Max Similar

Mechanical Properties of steel grade 43 CrMo 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)
475 (≥) 251 (≥) 43 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade 43 CrMo 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
42 - -     0.21 -  
518 417 - 42.3 231   -  
933 - 34 43.2   234 142

Heat Treatment of steel grade 43 CrMo 4

Heat treated : 1522°C - 1784°C

Technological Curves of steel grade 43 CrMo 4

Cross Reference Table (Equivalent Grade) of 43 CrMo 4

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