The benefits of ductile iron castings
Its performance is close to carbon steel, but it has good casting performance, easy molding, better machinability than cast steel, better heat resistance, corrosion resistance and wear resistance than steel. And a very important one: cheap.
Nodular cast iron has developed rapidly to be second only to grey cast iron and widely used as cast iron material. The so-called "iron instead of steel", mainly refers to ductile iron
Nodular cast iron, is a kind of high strength cast iron material developed in 50s twentieth Century, its comprehensive performance is close to the steel, it is based on its excellent performance, has been successfully used in casting complex stress, strength, toughness and wear resistance requirements of the higher parts.