promoting the sustainable and responsible use of cobalt in all forms

Alloys

Cobalt compounds used

Cobalt metal.

Applications

Aerospace, prosthetics, cutting tools, automotives and industrial equipment.


Cobalt can be utilised in other materials by the process of alloying whereby two or more elements, at least one of which is metallic, are combined. By creating cobalt containing materials, the metals key physico-chemical properties including magnetism, strength at elevated temperatures, and wear and corrosion resistance, can be conferred.

In a similar way, additional beneficial properties from other metals can be added to those of cobalt, creating a material that is more beneficial to a specific use. For example by adding chromium to cobalt a material can be produced which has high wear resistance and is bio-compatible; a material ideal for prosthesis.

Although overlapping in parts, alloys containing cobalt can be divided into super alloys, magnetic alloys, prosthetic alloys and wear-resistant alloys.

Usually the harder grades of cobalt containing alloys are used for wear whilst the softer and tougher grades are utilised in high temperature uses such as in gas turbines.

Cobalt metal and its alloys are recyclable contributing to a circular economy. See the Life Cycle Assessment for cobalt.


Photo credit: Julian Herzog: British Airways Airbus A380