High temperature Al-Cu-Mg-Ag alloy and method for producing a semi-finished product or product from such an aluminium alloy

摘要

Alloy Al-Cu-Mg-Ag heat resistant for manufacturing semi-finished products or products, suitable for use at higher temperatures, with high properties of static and dynamic strength, in association with an improved resistance to creep, which contains: - 0.3 to 0.7 wt% silicon (Si), - max. 0.15% by weight iron (Fe), - 3.5 to 4.7 wt% copper (Cu), - 0.05 to 0.5% by weight manganese (Mn), - 0.3 0.9% by weight of magnesium (Mg), - 0.02 to 0.15 wt% titanium (Ti), - 0.03 to 0.25% by weight of zirconium (Zr) - 0, 1 to 0.7% by weight of silver (Ag), - 0.03 to 0.5% by weight scandium (Sc), - 0.03 to 0.2% by weight of vanadium (V), - max . 0.05% by weight of other, separately, - max. 0.15% by weight of others in total - remainder aluminum.