Stainless steel made of iron, chromium, nickel and other metals. The exact composition of stainless steel depends on the type of steel. For example, austenitic steels are made of iron, chromium, and nickel. Ferritic steels contain iron and chromium, while martensitic steels contain iron, chromium and carbon. Stainless steel is resistant to corrosion and rust due to its unique composition.
The various metals in stainless steel interact to form a protective barrier that prevents oxygen and water from reaching the metal surface. This barrier also gives stainless steel its characteristic luster.