Here is what comes up when you Google "military grade, aluminum-alloy" CLICK ME---->
military grade, aluminum-alloyAluminium alloy 7075 is an aluminium alloy, with zinc as the primary alloying element. It is strong, with a strength comparable to many steels, and has good fatigue strength and average machinability,
but has less resistance to corrosion than many other Al alloys (oh snap, wounder how that's going to work out for the customer. You had better be on top of ANY chips or deep scratches!) . Its relatively high cost limits its use to applications where cheaper alloys are not suitable. 7075 aluminum alloy's composition roughly includes 5.6–6.1% zinc, 2.1–2.5% magnesium, 1.2–1.6% copper, and less than half a percent of silicon, iron, manganese, titanium, chromium, and other metals. It is produced in many tempers, some of which are 7075-0, 7075-T6, 7075-T651.
