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Germany DIN 34CrS4 Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 34CrS4 / 34 CrS 4
Category Grade Standard Region/Area Standard Content
Metals 34 CrS 4 DIN EN 10277-5 Germany Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering

Chemical composition(mass fraction)(wt.%) of the 34 CrS 4

Element Min Max Similar
Si - 0.4000 -
S 0.0200 0.0400 -
P - 0.0350 -
Mn 0.6000 0.9000 -
Cr 0.9000 1.2000 -
C 0.3000 0.3700 -

Mechanical Properties of steel grade 34 CrS 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)
371 (≥) 833 (≥) 24 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade 34 CrS 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
11 - -     0.34 -  
375 437 - 44.3 443   -  
939 - 23 33.2   134 223

Heat Treatment of steel grade 34 CrS 4

Heat treated : 1921°C - 1438°C

Technological Curves of steel grade 34 CrS 4

Cross Reference Table (Equivalent Grade) of 34 CrS 4

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