Al-Cu-Mg ALLOY SUITABLE FOR AEROSPACE APPLICATION
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United States of America Patent
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Issued Date -
Jul 5, 2007
app pub date -
Oct 23, 2006
filing date -
Oct 28, 2005
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Abandoned
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Abstract
An aluminium alloy wrought product having high strength and high fracture toughness and high resistance to intergranular corrosion. The alloy including in weight %: Cu 4.1-5.5%; Mg 0.30-1.6%; Mn 0.15-0.8%; Ti 0.03-0.4%; Cr 0.05-0.4%; Ag<0.7%; Zr<0.2%; Fe<0.20%, preferably <0.15%, more preferably <0.1%; Si<0.20%, preferably <0.15%, more preferably <0.1%; and the balance being aluminium and other impurities or incidental elements each <0.05%, total <0.15%.
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