7050 aluminium alloy

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Aluminium 7050 alloy is a heat treatable alloy. It has high toughness, high strength. It has high stress corrosion cracking resistance. [1] It has electric conductivity of value having 40 percent of copper. [2] 7050 aluminium is known as a commercial aerospace alloy. [3]

Contents

Chemical Composition

Element [1] Content (weight %)
Aluminum, Al89
Copper, Cu2.3
Magnesium, Mg2.3
Zinc, Zn6.2
Zirconium, Zr0.12

Physical Properties

Properties [1] Metric
Density2.6-2.8 g/cm3
Melting point494°C
Tensile strength515 MPa
Yield strength455 MPa
Fatigue strength240 MPa
Elastic modulus70-80 GPa
Poisson's ratio0.33
Elongation11%
Thermal conductivity180 W/mK

Designations

It can be written as: [1]

  1. AMS 4108
  2. AMS 4201
  3. ASTM B247
  4. ASTM B316
  5. QQ A-430

Welding

Welding should be avoided, because it weakens aluminum alloy. [2]

Applications

  1. Aircraft and other structures [1]
  2. Fuselage frames [2]
  3. Bulkheads [2]
  4. Wing skins [3]
  5. Military aircraft applications [3]


References

  1. 1 2 3 4 5 "Aluminum 7050 alloy properties". 31 August 2012. Archived from the original on 2020-09-18.
  2. 1 2 3 4 "Aluminum 7050". Archived from the original on 2016-03-28.
  3. 1 2 3 "7050 aluminum" (PDF). Archived (PDF) from the original on 2021-01-07.

Further reading

  1. For more properties, visit: http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=MA7050T765
  2. Aluminum 7050 properties for different thickness https://www.aircraftmaterials.com/data/aluminium/7050.html

Aluminum alloy table

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