What is 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 4	Content (%)
Aluminum, Al	89
Copper, Cu	2.3
Magnesium, Mg	2.3
Zinc, Zn	6.2
Zirconium, Zr	0.12

Physical Properties

Properties 5	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: ⁶

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. ⁷

Applications

1. Aircraft and other structures⁸
2. Fuselage frames⁹
3. Bulkheads¹⁰
4. Wing skins¹¹
5. Military aircraft applications ¹²

References

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External links

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

Original source: 7050 aluminium alloy. Shared with Creative Commons Attribution-ShareAlike 3.0 License

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