Tantalum wire
Production
Tantalum is a heat-resistant and malleable metal with a silvery gray color. Because of the difficulty in obtaining it, the metal was named after King Tantalus, known to many by the phrase "tantalum flour. It was not until the early twentieth century that tantalum was separated from niobium and other impurities and smelted in its pure form. Its production begins with an ore concentrate containing about 60% niobium and 8% tantalum oxide. The tantalum and niobium are separated by extraction and only then is the tantalum itself refined and reduced. Like other refractory metals, tantalum circles are produced by powder metallurgy after reduction of metallic tantalum with carbon. Processing is carried out by vacuum arc, electron-beam or plasma melting. Such a circle is a cylindrical semi-finished product that is subjected to further pressure treatment.
The wire is usually rolled out to Ø 0.01-3.9 mm.
| Type | Thickness, mm | Deviation, mm | Length, mm | Price |
|---|---|---|---|---|
| Wire | 0,01 -0.03 | ±0,0002 | Non-grain | Contractual |
| Wire | 0,04-0,09 | ±0,0004 | Non-measured | -- "-- |
| Wire | 0,1-0,2 | ±0,02 | Non-measured | -- "-- |
| Wire | 0,25-0,4 | ±0,02 | Non-mechanical | -- "-- |
| Wire | 0,5-1 | ±0,04 | Non-mechanical | -- "-- |
| Wire | 1,1-1,9 | ±0,05 | Non-mechanical | -- "-- |
| Wire | 2-3,9 | ±0,06 | Non-mechanical | -- "-- |
| Circle | 4-8,9 | ±0,09 | 2500 | -- "-- |
| Circle | 9-19,9 | ±0,12 | 2000 | -- "-- |
| Circle | 20 mm and more | ±0,19 | 1500 | -- "-- |
Applications
The initial use of tantalum wire coincided with the beginning of the twentieth century, when the material for the filaments of electric lamps was being sought. Tantalum lasted only a few years on the market and was quickly superseded by the more cost-effective tungsten. Mass demand for tantalum emerged on the wave of development of electrovacuum technology. Tantalum has a valuable combination of advantages: high emissivity and heat resistance that make it possible to use it in production of parts of radar, radio engineering and X-ray devices. Tantalum's ability to absorb gases helps maintain a deep vacuum in electric vacuum devices. Tantalum wire is used in modern medicine - plastic and bone surgery fasten bones with tantalum screws, connect muscles, ligaments, nerves make prosthetic bones and joints, put "patches" in craniocerebral traumas. Metal does not irritate the living tissue and does not cause allergies. Tantalum wire is in demand in cryotrons - superconductors used in computing.
Supply
We supply certified tantalum wire and rounds at the best price. The specification includes data on the percentage composition and performance qualities of the products. It's easy to buy any semi-finished products for large-scale production from us in bulk. We also cooperate with retail buyers. High level of service, compliance with GOST and international quality standards, prompt service is the face of our company. Wire with diameter exceeding 1 mm is supplied in special technological grease. Depending on wire diameter, the length of wire may vary from 150 to 2000 m. The percentage of impurities in the capacitor wire (diameter 0.01-3.9 mm) corresponds to the content of impurities in the tantalum ingot.
Buy at favorable price
Evek GmbH offers its customers an unlimited choice of rare and refractory metal products of the highest quality at a competitive price. If you have difficulty in making a choice, our experienced managers are always available to assist and advise you. Order with us and you will receive certified products that meet international quality standards in the shortest possible time. If you value your time, contact our nearest office today, or order online.