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GGG-NiCrNb 20 2

Germany DIN GGG-NiCrNb202 Austenitic cast iron and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GGG-NiCrNb202 / GGG-NiCrNb 20 2
Category Grade Standard Region/Area Standard Content
Metals GGG-NiCrNb 20 2 DIN 1694 Germany Austenitic cast iron

Chemical composition(mass fraction)(wt.%) of the GGG-NiCrNb 20 2

Element Min Max Similar
Si 1.5000 2.4000 -
P - 0.0400 -
Ni 18.0000 22.0000 -
Nb 0.1000 0.2000 -
Mn 0.5000 1.5000 -
Mg - 0.0800 -
Cr 1.0000 2.5000 -
C - 3.0000 -

Mechanical Properties of steel grade GGG-NiCrNb 20 2

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)
817 (≥) 574 (≥) 43 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade GGG-NiCrNb 20 2

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 -  
816 225 - 32.3 133   -  
992 - 21 13.2   133 122

Heat Treatment of steel grade GGG-NiCrNb 20 2

Heat treated : 1273°C - 1867°C

Technological Curves of steel grade GGG-NiCrNb 20 2

Cross Reference Table (Equivalent Grade) of GGG-NiCrNb 20 2

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