Aluminium 7050 alloy is a heat treatable alloy. It has high toughness, high strength. It has high stress corrosion cracking resistance. It has electric conductivity of value having 40 percent of copper. 7050 aluminium is known as a commercial aerospace alloy.
Chemical Composition ElementContent (weight %)Aluminum, Al89Copper, Cu2.3Magnesium, Mg2.3Zinc, Zn6.2Zirconium, Zr0.12
Physical Properties PropertiesMetricDensity2.6-2.8 g/cm3Melting point494°CTensile strength515 MPaYield strength455 MPaFatigue strength150 MPaElastic modulus70-80 GPaPoisson's ratio0.33Elongation11%Thermal conductivity180 W/mK
Designations It can be written as:
AMS 4108 AMS 4201 ASTM B247 ASTM B316 QQ A-430
Welding Welding should be avoided, because it weakens aluminum alloy.
Applications Aircraft and other structures Fuselage frames Bulkheads Wing skins Military aircraft applications
References
Further reading
External links For more properties, visit: http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=MA7050T765 Aluminum 7050 properties for different thickness https://www.aircraftmaterials.com/data/aluminium/7050.html
Aluminum alloy table