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Germany DIN 38Cr4 Flame and Induction Hardening Steels; Quality Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 38Cr4 / 38 Cr 4
Category Grade Standard Region/Area Standard Content
Metals 38 Cr 4 DIN 17212 Germany Flame and Induction Hardening Steels; Quality Specifications

Chemical composition(mass fraction)(wt.%) of the 38 Cr 4

Element Min Max Similar

Mechanical Properties of steel grade 38 Cr 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)
596 (≥) 346 (≥) 33 14 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 38 Cr 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
23 - -     0.42 -  
647 134 - 41.3 333   -  
867 - 32 41.2   113 131

Heat Treatment of steel grade 38 Cr 4

Heat treated : 1955°C - 1754°C

Technological Curves of steel grade 38 Cr 4

Cross Reference Table (Equivalent Grade) of 38 Cr 4

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