The main types of iron used in casting include:

  • Gray Iron: The most common, known for its good castability and machinability.
  • White Iron: Harder but brittle, used for wear-resistant applications.
  • Ductile Iron (or Nodular Cast Iron): Stronger and more ductile than gray iron, used for automotive parts and industrial applications.
  • Malleable Iron: Iron that has been heat-treated to improve its ductility and strength.