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17 NiCrMoS 6-4

Germany DIN 17NiCrMoS6-4 Bright steel products - Technical delivery conditions - Part 4: Case-hardening steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 17NiCrMoS6-4 / 17 NiCrMoS 6-4
Category Grade Standard Region/Area Standard Content
Metals 17 NiCrMoS 6-4 DIN EN 10277-4 Germany Bright steel products - Technical delivery conditions - Part 4: Case-hardening steels

Chemical composition(mass fraction)(wt.%) of the 17 NiCrMoS 6-4

Element Min Max Similar
Si - 0.4000 -
S 0.0200 0.0400 -
P - 0.0250 -
Ni 1.2000 1.5000 -
Mo 0.1500 0.2500 -
Mn 0.6000 0.9000 -
Cr 0.8000 1.1000 -
C 0.1400 0.2000 -

Mechanical Properties of steel grade 17 NiCrMoS 6-4

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)
921 (≥) 472 (≥) 11 14 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade 17 NiCrMoS 6-4

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
43 - -     0.11 -  
316 514 - 34.3 414   -  
827 - 14 41.2   234 114

Heat Treatment of steel grade 17 NiCrMoS 6-4

Heat treated : 1574°C - 1751°C

Technological Curves of steel grade 17 NiCrMoS 6-4

Cross Reference Table (Equivalent Grade) of 17 NiCrMoS 6-4

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