Aluminum 7050

Aluminum 7075 (UNS A97075) is an aluminum alloy comprised of mostly aluminum (Al) – roughly 90%. This alloy is also comprised of zinc (Z) (5.1% – 6.1%), copper (Cu) (1.2 – 2.0), and magnesium (Mg) (2.1% – 2.9%). Trace amounts of chromium (Cr), titanium (Ti), silicon (Si), and others make up the rest of this alloy.

Aluminum 7075 is a high-strength, yet lightweight aluminum alloy that is commonly used in the aerospace industry for various structural components. It also has high corrosive resistance characteristics for aluminum alloys and overall has high toughness to resist cracking – making it ideal for many structural applications for various aerospace, aviation, and defense structures. 

Chemical Compostion

(%max., unless shown as range or min.)

AL CU MN SI ZN MG CR TI Others
Min./Max.
Balance
1.2-2.0
0.30 Max
0.40 max
5.1-6.1
2.1-2.9
0.18-0.28
0.20 max
0.05-0.15

Common Fabrication Processes

Aluminum 7075 is a forgeable alloy and has good machinability properties. Parts commonly forged in this alloy includes:

  • Aircraft fittings/frames
  • Commercial aerospace components
  • Gears
  • Shafts – various
  • Rings and discs

Industries that Commonly use Aluminum 7075 Forgings:

  • Aerospace and Aviation Engineering
  • Commercial Aerospace
  • Military and Defense