People have acknowledged about compounds containing aluminum considering that historic periods. The ancient Egyptians used these aluminum compounds for building cosmetics and medicines. This alloy contains a significant percentage of copper (4.9%) coupled with magnesium and manganese. It offers significant strength and fatigue resistance but has very poor corrosion resistance https://aluminium-alloys23119.canariblogs.com/the-basic-principles-of-aluminium-alloys-47520739