Chromium is a common additive element in Al-Mg-Si, Al-Mg-Zn and Al-Mg alloys. It can hinder the nucleation and growth of recrystallization, strengthen the alloy to a certain extent, improve toughness, and reduce stress corrosion cracking sensitivity. It can also improve the surface quality of the product, improve the toughness of the alloy, improve the mechanical properties of the product, lower the furnace temperature, reduce energy consumption, and extend the furnace life.
