Form:

This specification covers an aluminum alloy in the form of flat sheet and plate 0.500 inch (12.70 mm) and under in nominal thickness.

Application:

These products are used primarily for structural parts requiring good strength. These products, when re-heat treated by the user, may not have the tensile properties shown.

Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking; ARP823 recommends practices to minimize such conditions.