Molybdenum (Mo) is a metallic element which is most frequently used as an alloying addition in alloy and stainless steels. Its alloying versatility is unmatched because its addition enhances strength, hardenability, weldability, toughness, elevated temperature strength and corrosion resistance.
Although Molybdenum is primarily used in steels, its complex and unique properties have proved invaluable in a constantly expanding range of other alloy systems, catalysts and chemicals. It also means that for many applications it has no economic substitutes.
One of the unique features of Molybdenum, as distinct from other heavy metals, is that laboratory tests have shown its compounds to be of low toxicity.