Magnesium AZ80A

General Characteristics of Magnesium AZ80A

Magnesium AZ80A performs well for extrusions and formings that resist creep and demand high fatigue strength. Stronger than AZ61A-F, AZ80A possesses an excellent machinability rating and can be readily heat treated.

Chemical Composition of Magnesium AZ80A

  • Aluminum 7.8-9.2
  • Manganese 0.15 min
  • Zinc 0.2-0.8
  • Silicon 0.05 max
  • Copper 0.05 max
  • Iron 0.005 max
  • Nickel 0.005 max
  • Additional impurities 0.30 max
  • Magnesium balance

Heat Treatment of Magnesium AZ80A

  • T5 temper: Heat at 350°F (177°C) for 16 hours before air cooling
  • T6 temper: Heat at 750°F (399°C) for four hours before air cooling; then reheat for 16 hours at 350°F (177°C) before air cooling

Applications of Magnesium AZ80A

  • Aircraft engine parts
  • Screw machine components
  • Hydraulic cylinders
  • Supercharger components

Machinability of Magnesium AZ80A

  • High cutting speed
  • Moderate feed
  • Modest cut depth
  • Large side and top rake
  • Generous chip clearance

Workability of Magnesium AZ80A

  • Avoid hammer forging
  • Press to forge into shape
  • Readily extruded
  • Hot work from 500° to 550°F (260° to 288°C)
  • Hot shortness around 750°F (399°C)

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