Stainless steel is a type of alloy that is resistant to rusting and corrosion. It is made of iron, chromium, and nickel, and sometimes other elements like carbon are added to obtain the desired properties. The chromium in stainless steel forms a passive film that can protect the material and self-heal in the presence of oxygen, which makes it resistant to rusting and corrosion.
 

Stainless steel is used in a variety of applications such as cookware, cutlery, surgical instruments, major appliances, vehicles, construction material in large buildings, industrial equipment, storage tanks, tankers for chemicals and food products. The biological cleanability of stainless steel is superior to both aluminium and copper, and comparable to glass.