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Cast Iron

The four basic types of cast iron - white iron, gray iron, ductile iron and malleable iron.

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There are four basic types of cast iron

  • white iron
  • gray iron
  • ductile iron
  • malleable iron

White Cast Iron

Characterized by the prevalence of carbides, impacting

  • high compressive strength
  • hardness
  • good resistance to wear

Gray Cast Iron

Characterized with graphite in the microstructure, giving

  • good machinability
  • good resistance to wear and galling

Ductile Cast Iron

Gray iron with small amounts of magnesium and cesium which nodulates the graphite,  resulting

  • high strength
  • high ductility

Malleable Cast Iron

White cast iron heat-treated to improve

  • higher ductility
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