球墨铸铁, also known as ductile iron, is a type of cast iron that has improved ductility and strength compared to traditional cast iron. It is characterized by the presence of spherical graphite nodules, which enhance its mechanical properties. This material is widely used in various applications, including pipes, automotive components, and machinery parts. The production of 球墨铸铁 involves adding small amounts of magnesium to molten iron, which promotes the formation of spherical graphite. This process results in a material that is both tough and resistant to wear, making it suitable for demanding environments. Its versatility and durability make it a popular choice in engineering and manufacturing industries.