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7050 aluminium alloy

Aluminium zinc alloy From Wikipedia, the free encyclopedia

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

More information Element, Content (weight %) ...
Element[1] Content (weight %)
Aluminum, Al 89
Copper, Cu 2.3
Magnesium, Mg 2.3
Zinc, Zn 6.2
Zirconium, Zr 0.12
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Physical Properties

More information Properties, Metric ...
Properties[1] Metric
Density 2.6-2.8 g/cm3
Melting point 494°C
Tensile strength 515 MPa
Yield strength 455 MPa
Fatigue strength 150 MPa
Elastic modulus 70-80 GPa
Poisson's ratio 0.33
Elongation 11%
Thermal conductivity 180 W/mK
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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

Further reading

External links

Aluminum alloy table

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