The Melting Point of Ductile Cast Iron constant displays the value of the melting point of ductile cast iron ASTM A536 - 60-40-18 (1150 °C).
Melting Point is defined as the point at which a solid turns into a liquid. The melting point of ductile cast iron is 1150 °C.
Material Properties (https://material-properties.org/graphite-density-strength-hardness-melting-point/)