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GGG-NiCr 20 3

Germany DIN GGG-NiCr203 Austenitic cast iron and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GGG-NiCr203 / GGG-NiCr 20 3
Category Grade Standard Region/Area Standard Content
Metals GGG-NiCr 20 3 DIN 1694 Germany Austenitic cast iron

Chemical composition(mass fraction)(wt.%) of the GGG-NiCr 20 3

Element Min Max Similar
Ni 18.0000 22.0000 -
Cr 2.5000 3.5000 -
Mn 0.5000 1.5000 -
Si 1.5000 3.0000 -
C - 3.0000 -

Mechanical Properties of steel grade GGG-NiCr 20 3

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)
435 (≥) 848 (≥) 23 33 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade GGG-NiCr 20 3

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 - -     0.31 -  
871 543 - 23.3 441   -  
134 - 33 23.2   443 213

Heat Treatment of steel grade GGG-NiCr 20 3

Heat treated : 1157°C - 1368°C

Technological Curves of steel grade GGG-NiCr 20 3

Cross Reference Table (Equivalent Grade) of GGG-NiCr 20 3

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