Imports of the metal tantalum, tantalum rod tantalum with tantalum powder, tantalum 
 Long-term supply of imports of the metal tantalum, tantalum rod, tantalum with tantalum powder, tantalum, symbols: Ta; color: gray and black; Boiling Point: 5458, tantalum is also a was steel gray luster the precious metals, the melting point up to 2980 ° C, density of 16.6 g / cm 3. Tantalum and niobium nature, is very stable chemical elements. Can react with tantalum only fluorine, hydrofluoric acid, acidic solution of the fluoride ion and sulfur trioxide. Reaction at room temperature with concentrated alkali solution, and dissolve in the molten alkali. Dense tantalum at 200 ° C, slightly oxidized. Tantalum has a good low-temperature plasticity, tantalum-based alloys even in the -196 ° C but also to maintain the scalability. In addition, the tantalum also has the ability to absorb hydrogen, nitrogen, and inhalation of 200-300 ℃, high temperature 800-1200 ° C under vacuum and re-precipitation. Under natural conditions, tantalum, niobium and more symbiotic, mineral containing tantalum and niobium: tantalum and niobium containing iron ore and placer deposits of tantalum niobate. Refining tin slag refining of tantalum resources. The division of tantalum or niobium mine depends on minerals containing tantalum or niobium number given. Priced below the market price, quality and acceptance by national standards. Be responsible for the delivery, please contact us.