@clarkwerk Absolutely. Aluminum in the presence of most strong acids reacts to produce hydrogen gas and heat. In large enough quantity you get fire or explosions. (When I was in high school, we used to fill garbage bags with H2 gas by taking a plastic conainer of H2S04 or HCl, dumping in crumbled balls of aluminum foil, and throwing the bag over… Don’t ask what we did with floating bags of explosive gas!) In small quantity, the acids will cause pitting of the surface of the aluminum, which increases the surface area of the pitted part, which then reacts more rapidly… Causes pinholes then crumbling.
We passivate stainless by soaking in strong acid until the iron at the surface is eaten away, leaving a chrome and carbide surface (which is mostly non-reactive to the acids)