Products Ductile iron is processed through ball and bred to obtain spherical graphite cast iron effectively improve the mechanical properties, in particular to improve the ductility and toughness, resulting in even higher strength than carbon steel. Ductile iron was developed in the 1950s as a high-strength cast iron materials, its overall performance is close to steel, is based on its excellent performance, has been successfully used for casting some of the complicated forces, strength, toughness, wear demanding higher parts. Ductile iron has rapidly developed into a second gray cast iron, cast iron material is widely used. The so-called "iron and steel", mainly refers to the ductile iron. Product Attributes of cast iron is carbon content greater than 2.14% of iron-carbon alloys, from industrial pig iron, scrap steel and alloy materials such as high temperature melting and casting to obtain, in addition to Fe, but also contains C, Si, Mn, S, P such as the five elements, and other alloying elements. The main purpose of cast iron in the form of graphite carbon precipitation, if precipitation when flake graphite cast iron bar was called gray cast iron or gray cast iron, the iron was called vermicular vermicular cast iron, cast iron was the group called white flocculent cast iron or iron yards, while spherical when called ductile cast iron. Other notes spheroidal graphite metal matrix fragmentation effects than other shapes graphite small, can make the iron strength of the matrix organization for 70 to 90% strength, tensile strength up to 120kgf/mm2, and has good toughness. Transaction Description Tel: 15833440502/0316-2051085.