7050 aluminium alloy

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]

Chemical Composition
Element [1] Content (%)
Aluminum, Al 89
Copper, Cu 2.3
Magnesium, Mg 2.3
Zinc, Zn 6.2
Zirconium, Zr 0.12

Physical Properties
Properties [1] Metric
Density 2.6-2.8 g/cm3
Melting point 494°C
Tensile strength 515 MPa
Yield strength 455 MPa
Fatigue strength 240 MPa
Elastic modulus 70-80 GPa
Poisson's ratio 0.33
Elongation 11%
Thermal conductivity 180 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. "Aluminum 7050 alloy properties".
  2. "Aluminum 7050".
  3. "7050 aluminum" (PDF).
  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
  3. Characterization on Aluminum Alloy 7050 Metal Matrix Composite Reinforced with Graphene Nanoparticles, "S.Venkatesana", "M. Anthony", "Xaviorb"

Aluminum alloy table
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