Stainless steel is a type of steel. Steel is steel with a carbon (C) content of less than 2%
Is iron. To join in the process of smelting steel chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo), and other alloying elements to improve the performance of steel made his steel corrosion resistance (i.e., not rust) is what we call the stainless steel.