Comparison of Lightweight Structural Materials: Be, and Alloys of Be, Mg, Al, and Ti 660652

New mechanical property data on the 62% Be, 38% Al alloy, “Lockalloy,” are presented and compared with other lightweight structural metals. The new data consist of tentative design properties for annealed sheet and provide a summary of its characteristics and properties. Material comparisons are made on the basis of gross fracture stress, an elastic weight index for compression critical structures, and on the basis of tensile strength/density and tensile yield strength/density ratios as a function of temperature for tension critical structures.


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