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Cobalt powder


The molecular formula of cobalt is Co. Cobalt powder is a gray irregular powder, soluble in acid, magnetic, and easy to oxidize in humid air. As a binder in powder metallurgy, cobalt can ensure the toughness of cemented carbide. Cobalt is also an important part of permanent magnetic alloys, and its performance determines the bonding performance, strength and toughness of super-hard alloy materials, which is very important to the performance of super-hard alloy materials. Cobalt powder is widely used in aviation, aerospace, electrical appliances, machinery manufacturing, chemical and ceramic industries. In the chemical industry, in addition to high-temperature alloys and anti-corrosion alloys, cobalt is also used in colored glass, pigments, enamels, catalysts, and desiccants.

Physical properties
 
Density Melting point Boiling point Resistivity
g/cm3  μΩ-cm, 20°C
8.9 1495 2870 6.24
 
Product categories and ingredients
 
Type   Element(%) Granularity Pine ratio (g/cm)
Reduced cobalt powder Co >99.9 1-3μm 0.6-1.5
Atomized cobalt powder Co >99.5 -80
-200M
-300M
2.5-4.0
 
Reduced cobalt powder is gray-black, and atomized cobalt powder is dark gray, which is easy to oxidize in humid air;
Reduced cobalt powder is irregular dendritic, atomized cobalt powder is irregular granular;
Reduced ultrafine cobalt powder is mainly used in powder metallurgy, cemented carbide, chemical catalysts, porous filter materials, diamond tools, magnetic materials, and contact materials; atomized cobalt powder is mainly used in special welding rods, flux-cored welding wires, and thermal spraying industries .

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