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]
- AMS 4108
- AMS 4201
- ASTM B247
- ASTM B316
- QQ A-430
Welding
Welding should be avoided, because it weakens aluminum alloy. [2]
Applications
- Aircraft and other structures [1]
- Fuselage frames [2]
- Bulkheads [2]
- Wing skins [3]
- Military aircraft applications [3]
References
Further reading
- Venkatesan, S.; Xavior, M. Anthony (2019). "Characterization on Aluminum Alloy 7050 Metal Matrix Composite Reinforced with Graphene Nanoparticles". Procedia Manufacturing. 30: 120–127. doi: 10.1016/j.promfg.2019.02.018. ISSN 2351-9789.
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