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Cobalt (strip, sheet, pig, ingot)

Cobalt is the 27th element of Mendeleyev’s periodic system. It is designated as Co (from Latin — Cobaltum). It is silvery metal with bluish, yellowish or pinkish tint, which appears because of surface oxide film.

History

Cobalt name came from German word «Kobold» that means cave-dwelling gnome. While annealing, cobalt mines that contain arsenic give off toxical volatile oxides AsO. Ancient Norwegians thought that frequent intoxications at silver smelting are the intrigues of mountain evil spirit. That is why they named this material like this. In 1735, Swedish chemist George Brandt managed to separate from mineral an unknown at that times material, which was named with trivial name, Chemist also found out that derivative products of this element give a blue color to glass. This property was used in times of ancient Babylon and Assyria.

Technical characteristics

Cobalt is hard metal that has two modifications: α — modification (resistant to a temperature of 427 °C, β-modification (cubic face-centred lattice — resistant at a temperature of 427 — 1120 °C). Cobalt is ferromagnet with Curie point of 1121 °C.

Physical features

Description Identification
Atomic (molal) weight mole/h 58.93
Oxidation rate 3, 2, 0, -1
Density [g/cm3]

8.9
Melting point is 1400° 1494°С
Melting heat kJ/mole 15.48
Heat conductivity K [V/m*K] 100
Evaporation heat kJ/mole 389.1

Cobalt application

— industrial chemistry (catalysis of chemical reactions);

— alloy that contains up to 50% of Co, chromium, and vanadium is used for permanent magnets;

— alloying with cobalt can increase alloy heat resistance and improve mechanical properties of steel by making it tool material (drill, cutters etc.)

— magnetic properties of cobalt alloys allow using them in transformer cores, electric motor, devices for magnetic recording;

— CoSi silicide is perfect thermoelectric material for thermoelectric generators with high coefficient of useful effect performance duty;

— radioactive 60 Со is used in medicine, gamma-ray flaw detection, for nuclear reactor filling;

— lithium cobalt is highly effective positive electrodes in manufacture of lithium accumulators.

Supplier

«Auremo» supplier offers to buy cobalt products by wholesale. A wide range of half-finished goods is presented in stock. They comply with GOST and International Standards of quality. Cobalt sheet, strip, ingot, bar are always in stock. You can buy them for the best price from cobalt sheet, strip supplier. We are waiting for your orders. Buy cobalt sheet, strip right now! Cobalt sheet, strip price is privileged for wholesale buyers.

Buy at a bargain price

Wide range of products is presented in «Auremo» supplier. We offer rare and refractory metals for affordable price. Our specialists are always ready to help with selecting required products, which determine capability and reliability of future equipment. Cobalt sheet, strip rice depends on order quantity and additional conditions of supply. Cobalt sheet, strip, ingot are always in stock. There is the best cobalt sheet, strip price in an actual segment of mill-products. If you buy cobalt sheet, strip by wholesale, you will be given special discounts. By cooperating with «Auremo» cobalt sheet, strip supplier, you discover a really reliable partner.