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Product name: Cobalt Metal
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| Stock: yes |
| Stock Quantity: 200 MT |
| Stock Place: TIANJIN and SHANGHAI |
| Payment: L/C, D/P at sight or T/T |
| Shipping port: TIANJIN or SHANGHAI |
| Documents: INVOICE, PACKING LIST, BILL OF LADING, CIQ, ORIGINAL CERTIFICATE |
| Delivery Days after receviced L/C or T/T: 10 Working days |
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| Specification : |
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Producer:
1) Jinchuan products
2) Chambishi products
3) UMK products
Spece: 1) Co 99.9%min 2) Co 99.8%min 3) Co 99.9%min
Cobalt Briquette
[Spec] Co 99.9% min, Ni 0.05% max, C 0.004% max, Fe 0.01% max, S 0.02% max, Cu 0.02% max
[Size] 40 * 24 * 14mm
[Packing] In steel drum on pallet or in big bag (as per the buyer's request)
Cobalt Granules
[Spec] Co 99.3% min
[Size] 3~20mm(90% min)
[Packing] In steel drum on pallet or in big bag (as per the buyer's request)
Broken Cobalt Cathode
[Spec] Co 99.8% or 99.6% min
[Size] 10~30mm(90% min)
[Packing] In steel drum on pallet or in big bag(as per the buyer's request)
Electrolytic Cobalt impurity
Co 99.98% Min
C/Ni 0.005% max each,
S/Cu/Zn/Si 0.001% max each,
Mn/As/P 0.0005% max each,
Fe 0.003% max,
Pb/Cd/Mg/Sn/Sb/Bi 0.0003% max each
Co 99.8% Min
C/Mn 0.005% max each,
Si/Fe/Cu 0.003% max each,
S/Zn/Mg/Al 0.02% max each,
Cd/Sn/Sb/Bi 0.0003% max each,
As 0.0005% max,
Pb 0.0004% max
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| Custom specifications are available
upon request. |
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Cobalt is a hard ferromagnetic silver-white element. It is frequently associated with nickel, and both are characteristic ingredients of meteoric iron. Mammals require small amounts of cobalt salts. Cobalt-60, an artificially produced radioactive isotope of cobalt, is an important radioactive tracer and cancer-treatment agent. Cobalt has a relative permeability two thirds that of iron. Metallic cobalt commonly presents a mixture of two cristallographic structures hcp and fcc with a transition temperature hcp->fcc of 722 K.
Common oxidation states of cobalt include +2, and +3, though +1 is also seen.
Cobalt has been in use since at least 2250 BC, when the Persians used it to color glass. It was not until 1735, however, that Swedish scientist G. Brandt first isolated metallic cobalt and it was not until 1780 that it was recognized as an element. Today, cobalt is used mainly in high-temperature steel alloys, magnetic alloys and hard-facing alloys resistant to abrasion. Alloys containing 25 percent cobalt have been developed for use as fasteners in gas turbine engines. Presently, 747 jet engines are estimated to contain 400 pounds of cobalt apiece. U.S. resources of the silver-gray metal are estimated to be about 1.3 million tonnes, most of which are in Minnesota; however, there are other deposits in Alaska, California, Idaho, Missouri, Montana and Oregon. Cobalt supplies from these deposits, except Idaho, are by-products of other metals.
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Cobalt in superalloys used for jet engines, spare engine parts and Cland-based gas turbines for power generation. and rechargeable batteries, wear- and corrosion-resistant alloys, and hydroprocessing catalysts for oil refining.
Alloys, such as:
Superalloys, for parts in gas turbine aircraft engines.
Corrosion- and wear-resistant alloys.
Cemented carbides (also called hardmetals) and diamond tools.
Magnets and magnetic recording media.
Catalysts for the petroleum and chemical industries.
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