Ductile cast iron, also known as nodular cast iron, is a type of iron alloy that contains small amounts of magnesium. This addition changes the structure of the iron, allowing it to be more flexible and resistant to breaking compared to traditional cast iron. Its unique properties make it suitable for various applications, including automotive parts and heavy machinery. The manufacturing process of ductile cast iron involves melting iron and adding alloying elements to achieve the desired characteristics. This material is known for its excellent strength, wear resistance, and ability to absorb shock, making it a popular choice in industries that require durable components.