7475 aluminium alloy

7475 aluminum alloy (Adirium) is a wrought alloy with high zinc weight percentage. It also contains magnesium, silicon and chromium.^[1]

7475 alloy can not be welded. It has more spring back because of its strength. It has high machinability.^{[citation needed]}

Chemical composition

Element[1]	Content (%)
Aluminum	90.3
Zinc	5.7
Magnesium	2.3
Silicon	1.50
Chromium	0.22

Properties

Properties[1]	Value
Density	2.6–2.8 g/cm3 (0.094–0.101 lb/cu in)
Melting point	546 °C (1,015 °F)
Elastic modulus	70–80 GPa (10,000–12,000 ksi)
Poisson's ratio	0.33
Thermal conductivity	177 W/m/K (0.040 hp/ft/°R)
Ultimate Tensile Strength[2]	531 MPa (77.0 ksi)
Elongation at Break[2]	12%
Modulus of Elasticity[2]	71.7 GPa (10,400 ksi)

Applications

1. Shell casings
2. Aircraft

^[1]

References

1. "Aluminum 7475 alloy". 31 August 2012. Archived from the original on 2021-01-09.
2. "7475 alloys". Archived from the original on 2004-05-21.

External links

1. https://www.suppliersonline.com/propertypages/7475.asp
2. https://www.suppliersonline.com/propertypages/7475.asp
3. https://www.makeitfrom.com/material-properties/7475-AlZn5.5MgCuA-Aluminum
4. Tanaka, Hiroki; Minoda, Tadashi (1 July 2014). "Mechanical properties of 7475 aluminum alloy sheets with fine subgrain structure by warm rolling". Transactions of Nonferrous Metals Society of China. 24 (7): 2187–2195. doi:10.1016/S1003-6326(14)63331-8.
5. https://www.efunda.com/Materials/alloys/aluminum/show_aluminum.cfm?ID=AA_7475&show_prop=all&Page_Title=AA%207475