What is another word for Cast iron?
Pronunciation: [kˈast ˈa͡ɪ͡ən] (IPA) 
Cast iron is a type of iron alloy known for its durability and heat retention properties. Synonyms for cast iron include pig iron, grey iron, white iron, malleable iron, and ductile iron. Pig iron is the crudest form of cast iron with high carbon content and impurities. Grey iron is a type of cast iron that contains graphite flakes, making it easily machinable. White iron, on the other hand, has no graphite and is extremely hard and brittle. Malleable iron is a type of cast iron that has been annealed, making it more ductile and easier to shape. Ductile iron, also known as nodular iron, is a type of strong and flexible cast iron that contains small amounts of magnesium or cerium.
