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公开(公告)号：US20250137102A1
公开(公告)日：2025-05-01
申请号：US18730122
申请日：2023-01-26
Applicant: CONSTELLIUM ISSOIRE
Inventor： Juliette CHEVY , Pablo LORENZINO , Hélène GODIN
Abstract: The invention relates to a thin sheet, the thickness of which is less than 12.7 mm, having an essentially recrystallized granular structure, made from an aluminum-based alloy comprising 2.5 to 3.5% by weight of Cu, 0.7 to 0.9% by weight of Li, 0.3 to 0.5% by weight of Mg, 0.2 to 0.5 by weight of Mn, 0.25 to 0.65% by weight of Zn, 0.01 to 0.15% by weight of Ti, 0 to 0.07% by weight of Ag, an amount of Fe and of Si of less than or equal to 0.1% by weight each, and inevitable impurities at a content of less than or equal to 0.05% by weight each and 0.15% by weight in total, with the remainder being aluminum.
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