AL-CU-MG ALLOY SUITABLE FOR AEROSPACE APPLICATION

摘要

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%.