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18 CrNi 8

Germany DIN 18CrNi8 Case hardening steels; technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18CrNi8 / 18 CrNi 8
Category Grade Standard Region/Area Standard Content
Metals 18 CrNi 8 DIN 17210 Germany Case hardening steels; technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the 18 CrNi 8

Element Min Max Similar

Mechanical Properties of steel grade 18 CrNi 8

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)
939 (≥) 771 (≥) 44 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 18 CrNi 8

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
21 - -     0.13 -  
699 586 - 12.3 134   -  
233 - 32 42.2   122 411

Heat Treatment of steel grade 18 CrNi 8

Heat treated : 1799°C - 1952°C

Technological Curves of steel grade 18 CrNi 8

Cross Reference Table (Equivalent Grade) of 18 CrNi 8

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