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7475 aluminium alloy

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

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

7475 alloy can not be welded. It has more spring back because of its strength. It has high machinability.

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

Properties	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	531 MPa (77.0 ksi)
Elongation at Break	12%
Modulus of Elasticity	71.7 GPa (10,400 ksi)

Shell casings
Aircraft
https://www.suppliersonline.com/propertypages/7475.asp
https://www.suppliersonline.com/propertypages/7475.asp
https://www.makeitfrom.com/material-properties/7475-AlZn5.5MgCuA-Aluminum
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.
https://www.efunda.com/Materials/alloys/aluminum/show_aluminum.cfm?ID=AA_7475&show_prop=all&Page_Title=AA%207475

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