Question

Stainless steel is a__________..

Answer 1

1. Stainless steel is a kind of steel alloy that contains at least chromium content of $10.5\%$.
2. Chromium reacts with the oxygen in the air and forms a very powerful and protective layer that makes it (stainless steel) highly resistant to corrosion and rust.
3. It is little malleable and a bit tougher than carbon steel.
4. The exact components and ratios in stainless steel will vary based on the grade requested and the intended use of the steel.

Thus Stainless steel is a corrosion-resistant alloy of iron and chromium and in some cases, nickel and other metals