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Germany DIN GG-40 Flake graphite cast iron (grey cast iron); properties and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GG-40 / GG-40
Category Grade Standard Region/Area Standard Content
Metals GG-40 DIN 1691 Germany Flake graphite cast iron (grey cast iron); properties

Chemical composition(mass fraction)(wt.%) of the GG-40

Element Min Max Similar

Mechanical Properties of steel grade GG-40

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)
632 (≥) 192 (≥) 23 44 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade GG-40

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 - -     0.31 -  
145 911 - 33.3 441   -  
876 - 42 22.2   234 424

Heat Treatment of steel grade GG-40

Heat treated : 1796°C - 1744°C

Technological Curves of steel grade GG-40

Cross Reference Table (Equivalent Grade) of GG-40

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