Beryllium-aluminium alloy

Beryllium-aluminum alloy an alloy that consists of 62% beryllium and 38% aluminum, by weight, corresponding approximately to an empirical formula of Al2Be. It was first developed in the 1960s by the Lockheed Missiles and Space Company, who called it Lockalloy, and used as a structural metal in the aerospace industry because of its high specific strength and stiffness. The material was used in the Lockheed YF12 aircraft and LGM-30 Minuteman missile systems. In the 1970s production difficulties limited the material to a few specialized uses and by the mid 1970s Lockalloy was no longer commercially available.

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