7475 aluminum alloy (Adirium) is a wrought alloy with high

zinc Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodi ...

weight percentage. It also contains

magnesium Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic ta ...

silicon Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic tab ...

and

chromium Chromium is a chemical element with the symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Chromium metal is valued for its high corrosion resistance and hardne ...

. 7475 alloy can not be

welded Welding is a fabrication process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool, causing fusion. Welding is distinct from lower temperature techniques such as braz ...

. It has more spring back because of its strength. It has high machinability.

Chemical composition

Properties

Applications

# Shell casings # Aircraft

References

External links

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