7039 aluminium alloy


AA 7039 is an aluminum alloy principally containing zinc as an alloying element. It also contains 0.30% silicon, 0.40% iron, 0.10% copper, 0.10–0.40% manganese, 2.3–3.3% magnesium, 0.15–0.25% chromium, 0.10% titanium and up to 0.15% trace elements. The density of 7039 aluminium is.
This alloy was first registered in 1962, in the United States.