Cobalt Metal

Cobalt Metal for Sale Cobalt is a shiny steel-gray metal, relatively hard and brittle, ferromagnetic, heated to 1150℃ magnetic disappear. The combined valence of cobalt is 2 and 3. It does not interact with water at room temperature and is stable in humid air. It is oxidized to CoO when heated to more than 300℃ in the air, and burned into Co3O4 when white hot. The fine cobalt metal minor powder produced by hydrogen reduction can spontaneously ignite into cobalt oxide in air. Specification of Cobalt Metal Chemical Composition Co:99.95 C: 0.005 S<0.001 Mn:0.00038 Fe:0.0049 Ni:0.002 Cu:0.005 As:<0.0003 Pb:0.001 Zn:0.00083 Si<0.001 Cd:0.0003 Mg:0.00081 P<0.001 Al<0.001 Sn<0.0003 Sb<0.0003 Bi<0.0003 Application of Cobalt Metal Cobalt metal is mainly used to make alloys. Cobalt-based alloy is the general term for an alloy made of cobalt and chromium, tungsten, iron, and nickel. The wear resistance and machinability of the tool steel with a certain amount of cobalt can be significantly improved. Starlite carbide with cobalt-50 or more will not lose its original hardness even if heated to 1000℃. Today, this kind of carbide has become the most important material used between gold-cutting tools and aluminum.

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