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Properties of Cobalt

Cobalt is resistant to stress and corrosion at high temperatures. Cobalt is a shiny, grey, brittle metal. The metal is rarely used as a structural material in the pure form but it is an important ingredient in other materials. Because of it's unique properties, cobalt has many uses:

High Temperature Melting Point

Cobalt has a high temperature melting point of 1493°C. This means it retains its strength to a high temperature. The aerospace industry uses cobalt in the production of super alloys. In the nickel-base super-alloys, cobalt provides solid solution strengthening. It decreases the solubility of aluminum and titanium. It is used in cutting tools and diamond tooling.

Blue Coloring

Cobalt is a shiny, grey metal however in conjunction with silica, cobalt produces intense blue colors. Cobalt is a pigment in ceramics, glass, paint, inks and plastic.


Because cobalt retains this property to 1100°C, this alloy is used in the production of rechargeable batteries and magnets. Cobalt is naturally ferromagnetic and provides resistance to demagnetization in several groups of permanent magnet materials including


Aerodyne Alloys Note: The information on this page is provided strictly and specifically for information purposes only.