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SAE AMS4251 Revision A, March 1, 2006
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Aluminum Alloy Sheet 2.7Cu - 2.2Li - 0.12Zr (2090-T83) Solution Heat Treated, Cold Worked, and Precipitation Heat Treated
Includes all amendments and changes through Reaffirmation Notice , November 2011
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AIA/NAS Aerospace Standards

This specification covers an aluminum alloy in the form of sheet.


Primarily for applications requiring the strength of AMS 4045 and 7.8% lower nominal density.