The damping behavior in relation to mechanical oscillations improve in this material. Compacted graphite iron has a higher resistance and fracture toughness, with a lower section sensitivity. The advantages to nodular graphite cast iron are up to the thermal expansion. Compacted graphite cast iron offers a higher thermal conductivity and a better resistance to thermal shocks.
Compacted graphite iron is present in the form of worms (photo right). These worms shape a similar three-dimensional, branched out structure as in grey cast iron. This structure is decisive for the better damping behavior and higher elongation of this material.