Ductile cast iron is a special form of cast iron, which has high ductility and toughness by adding different proportions of magnesium and rare earth elements in the casting process. It inherits the advantages of traditional cast iron, such as excellent fluidity, low melting point and high wear resistance, while overcoming its shortcomings of brittleness and easy fracture. This makes cast iron an ideal choice in all fields.
Some customers of Qingdao TianHua YiHe foundry asked us about the difference between cast iron and ductile iron, including their advantages and disadvantages. Here in, we listed their main properties and hope to give you a reference for material selection. Actually, before comparison, we need to clarify a definition. The cast iron is meaning a category of iron material, whose carbon content is higher than 2.1%. Therefore, it includes many different types according to different graphite shapes and microstructures, such as grey iron, ductile iron, white iron, malleable iron, vermicular iron, austenitic iron etc.