The U.S. Air Force is looking for one good aluminum alloy. The service wants a higher-strength alternative to alloy 2014, which is widely used in aerospace components and fittings, as well as military vehicles and weapons, due to its machining and forming properties. It also wants an alternative to alloy 2040, developed and produced by Alcoa. This material has enhanced properties compared with 2014 that reduce landing-gear weight, but it's a single-source metal, and costly. USAF has awarded ...


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