Malleable as an ancient engineering material, because it has high strength and toughness, but also high damping and good elongation, use it to manufacture cars, valves, hardware tools, weapons and household utensils Wait. Since the 1950's there has been ductile iron, malleable and some areas have been replaced by ductile iron. But it proved: Malleable this engineering material has its own characteristics, has its irreplaceable independent applications, especially after China's accession to WTO, the advantages of Chinese production of Magang will get good opportunities in the international market Magang.

Malleable cast compared to other black metal, its cutting than steel, ductile iron is good; good corrosion resistance than steel; heat resistance than cast steel, gray cast iron is good; damping properties than steel, ductile good ; low ductile-brittle transition temperature is lower than the ductile iron; white heart malleable cast iron also has a family, the most good weldability. Also, because the chemical composition is malleable carbon, silicon and manganese suitable sulfur ratio, scrap can be used as the main raw material, or even be used steel scrap, iron scrap as a raw material. Sulfur content of malleable cast iron may be relatively higher than other, which cupola malleable refining is advantageous. Thus to say Magang castings have a lower cost, high efficiency, uniform quality, mature technology easy to master, stable performance and clear and easy casting Riser. Therefore, Magang industry was in a large branch of the foundry industry.