Molybdenum

Molybdenum is a silvery-white metal with one of the highest melting points of any element and has one of the lowest coefficients of thermal expansion amongst metals. Its name is derived from the Greek word “molybdos”, meaning lead.

It is very hard and tough, although softer and more ductile than tungsten. Chemically, it is very stable, although it will react with acids.

Molybdenum product uses

Molybdenum’s ability  to withstand extreme temperatures without significant thermal expansion or softening makes it useful in applications involving intense heat, such as lighting filaments, aircraft parts, electrical contacts, industrial motors, and nuclear energy applications.

Molybdenum is also used in steel alloys to reduce brittleness, increase toughness, and enhance corrosion resistance.

In stainless steels it improves the strength and corrosion-resistance, a requirement for water distribution systems, food handling equipment, and chemical processing equipment for  homes, hospitals, and laboratories.

Alloy steels include the stronger and tougher steels for automotive parts, construction equipment, and gas transmission pipes. Other major uses as an alloy include tool steels for bearings, dies, machining components; cast irons, for steel mill rolls, auto parts, crusher parts; superalloys for use in furnace parts, gas turbine parts, and chemical processing equipment.

Molybdenum’s ability  to withstand extreme temperatures without significant thermal expansion or softening makes it useful in applications involving intense heat, such as lighting filaments, aircraft parts, electrical contacts, industrial motors, and nuclear energy applications. 

Molybdenum special properties

Melting point 2623°C
Density 10.28g.cm-3
Specific heat capacity 24.06 J.mol-1.K-1 (at 25°c)
Thermal expansion 4.8 µm.m-1.K-1
Mohs' hardness 5.5

Molybdenum is sold as

  • Bars
  • Rods

Molybdenum origins

LKAB Minerals' Molybdenum originates from reliable sources in the U.S. and China.

Molybdenum toxicology

n.a.

Related products

  1. Tungsten
    • Tungsten (derived from the Swedish phrase “tung sten”, meaning heavy stone) is a hard, brittle, steel-grey metal that is difficult to work unless in the very pure state, when it is more malleable and ductile.

      More on Tungsten

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More information

  1. Molybdenum Product Data Sheet.pdf

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