Malleable cast iron is produced from white cast iron, which is made from hot liquid iron with certain chemical components. The white cast iron needs to be treated by malleablizing, such as graphitizing or oxidation and decarbonization, then its metallographic structures or chemical components will be changed, so can become into malleable cast iron.
Comparing with the gray cast iron, malleable cast iron has better strength and ductility, especially better impact resistance in low temperatures.
Comparing with cast steel, malleable cast iron has better abrasive resistance and shock absorption.
Comparing with the ductile iron, both of them have good strength and ductility, but malleable iron has better impact resistance, but ductile iron has better abrasive resistance.