It is this nodular microstructure of carbon in Ductile Iron which produces high ductility and shock resistance while the flake form of cast iron results in no malleability.

• 正是这种碳的球状微观结构，使得球墨铸铁具有更加良好的展延性和抗冲击性，而铸铁内部的薄片形式导致铸铁没有展延性。