Materials Commonly Used

Materials        Properties
Aluminum alloys
  • Low density
  • Good corrosion resistance
  • High thermal and electrical conductivity
  • High dimensional stability
  • Relatively easy to cast
  • Requires use of a cold chamber machine
Zinc alloys
  • High density
  • High ductility
  • Good impact strength
  • Excellent surface smoothness allowing for painting or plating
  • Requires such coating due to susceptibility to corrosion
  • Easiest to cast
  • Can form very thin walls
  • Long die life due to low melting point
  • Use of a hot chamber machine
Copper alloys
  • High strength and toughness
  • High corrosion and wear resistance
  • High dimensional stability
  • Highest cost
  • Low die life due to high melting temperature
  • Requires use of a cold chamber machine
Magnesium alloys
  • Very low density
  • High strength-to-weight ratio
  • Excellent machinability after casting
  • Use of both hot and cold chamber machines

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