Type of Cast Iron

There are several types of cast iron, including:

Gray cast iron: This is the most common type of cast iron, known for its excellent machinability and damping properties. It is named for its gray appearance due to the presence of graphite flakes.

White cast iron: This type of cast iron has a white color due to the presence of cementite in its microstructure. It is harder and more brittle than gray cast iron.

Ductile cast iron: Also known as nodular or spheroidal graphite iron, this type of cast iron has graphite in the form of nodules, making it more ductile and impact-resistant than gray cast iron.

Malleable cast iron: This type of cast iron is heat-treated to convert carbon in the form of cementite into graphite nodules, resulting in improved ductility and toughness.

Alloyed cast iron: Cast iron can be alloyed with various elements such as nickel, chromium, and molybdenum to enhance specific properties like corrosion resistance or high-temperature strength.

These are just a few examples of the types of cast iron used in various industries and applications.