Brief introduction of nodular cast iron

Nodular cast iron is a kind of high strength cast iron material developed in the fifty "s in twentieth Century. Its comprehensive performance is close to that of steel.Based on its excellent performance, it has been successfully used in the casting of some parts with complex strength, toughness and wear resistance.Nodular cast iron has been rapidly developed as a very wide range of cast iron.

Nodular graphite cast iron is obtained by the ball and inoculation process. It can improve the mechanical properties of the cast iron, especially improve the ductility and toughness.

Nodular cast iron

Cast iron is containing carbon content greater than 2.11 percent of iron carbon alloy, produced by high temperature melting and casting industrial pig iron, scrap steel, iron, steel and alloy material. Except for Fe, containing and other cast iron carbon graphite morphology of the precipitated, if the precipitation of graphite is a sheet of iron called grey cast iron, flocculent iron called white cast iron , and spherical cast iron is called nodular cast iron.

The chemical composition of ductile iron in addition to iron is usually as follows: 3 to 4% carbon content, containing silicon content of 1.8 to 3.2%, with manganese, phosphorus, sulfur content less than 3% and the amount of rare earth, magnesium, etc..


This blog is  published by the nodular cast iron manufacturer RUYI FOUNDRY CO., LTD.