7065 aluminium alloy explained

7065 is high zinc containing aluminum alloy. It is used for making plate.

Chemical Composition

Element[1] Weight percentage
Aluminum87.02 - 89.45 %
Chromium<= 0.04 %
Copper1.9 - 2.3 %
Iron<= 0.08 %
Magnesium1.5 - 1.8 %
Manganese<= 0.04 %
Other, each<= 0.05 %
Other, total<= 0.15 %
Silicon<= 0.06 %
Titanium<= 0.06 %
Zinc7.1 - 8.3 %
Zirconium0.05 - 0.15 %

Properties

7065-T7451 alloy properties[2] !Property!Value
Ultimate Tensile strength77 ksi
Yield strength71 ksi
Elongation percentage11%

Application

  1. Plate
  2. Aerospace
  3. The combination of high strength and fracture toughness properties and corrosion resistance makes 7065 suitable as a replacement for 7010, 7050, 7075, 7475 and other alloys for critical intermediate thickness applications.[3]
  4. Spar, rib, and integrally machined structural parts for new, derivative, or retrofit aircraft.

Notes and References

  1. Web site: Aluminium 7065 composition.
  2. Web site: Aluminum alloy properties. live. https://web.archive.org/web/20161114003831/http://aluminum.org/sites/default/files/Addendum_to_Yellow_Sheets_MAY%202016-Clean%20Copy.pdf . 2016-11-14 .
  3. Web site: Aluminum 7065 alloy. live. https://web.archive.org/web/20210108165023/https://nanopdf.com/download/aluminum-alloy-7065_pdf . 2021-01-08 .