Steel is a composition of (primarily) Carbon and Iron. The more carbon, the harder, less ductile the steel. Stainless steel is Carbon, Iron and Chromium, that is galvinized (diped into zinc, which...
Aluminum is a chemical element. Steel is an alloy that consists mostly of iron and has a carbon content. Other elements in steel are manganese, chromium, vanadium, and tungsten.
it's likely, but it depends on many different factors liks: 1) area ratio of the metals (big aluminum are vs small steel is better)2) type of exposure (atmospheric, immersed in water..)3) type of...