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Alloy 2055 is an Al-Cu-Li alloy developed as a replacement for high-strength 7xxx and 2xxx alloys in applications such as fuselage stringers and floor beams. This datasheet provides information on its key alloy metallurgy and illustrates the damage tolerance of 2055-T84 extrusions and 7xxx extrusions.

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2055: Low-Density High-Strength Extrusion Alloy, Properties and Selection of Aluminum Alloys, Vol 2B, ASM Handbook, Edited By Kevin Anderson, John Weritz, J. Gilbert Kaufman, ASM International, 2019, p 310,

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