Engineering

Molybdenum has one of the highest melting temperatures of all the elements, yet unlike most other high-melting point metals, its density is only 25% greater than that of iron. Its coefficient of thermal expansion is the lowest of the engineering materials, while its thermal conductivity exceeds all but a handful of elements.  

These properties make it ideal as alloying ingredient in engineering applications. When added to steel and cast irons, molybdenum enhances strength, hardenability, weldability, toughness, elevated temperature strength, and corrosion resistance. In nickel-base alloys, it improves resistance to both corrosion and high-temperature creep deformation. Molybdenum-based alloys have a unique combination of properties, including high strength at elevated temperatures, high thermal and electrical conductivity, and low thermal expansion.

In order to ‘signpost’ content available on the website, we have curated information into areas which broadly match academic curriculum sections. Please click on an area for a greater explanation of molybdenum’s role in this sector and links to the relevant pages within the website.