Steel and Aluminium are not noble metals. Nobel metals are those that do not readily oxidize and react. They include gold and most of the Platinum group, silver, mercury.
Nope, noble metal is a metal that has memory
Example take to steel rods an adjoin em with a gurney nut, the netal memory or desire to return to shape keeps the gurney nut tightened,as for alunimum, use the same example, there is no memory or ability to return to original shape, gold is a soft metal,