Pure Tungsten Rod
Tungsten has high melting point, high temperature strength and creep resistance and thermal conductivity, electrical conductivity and electron emission performance are good, than the major. Low expansion coefficient and the lowest pressure of metal vapor. The general way of preparation by powder metallurgy.
Pure tungsten rod application
Tungsten rod with special properties, such as low thermal expansion and good thermal conductivity, sufficient anti-resistive, high elastic modulus. Therefore tungsten rod is widely used in various fields. Such as support lines, import lines, printer needles, various electrodes and quartz furnace, high-speed tools, auto auto products, sputtering target.
Pure tungsten rod properties
| Pure tungsten rod properties |
Melting point of pure tungsten rod |
The highest temperature |
Resistivity of pure tungsten rod |
Conductivity of pure tungsten rod |
Pure tungsten rod thermal expansion |
Pure tungsten rod degree of thermal conductivity |
| Value | 3410°C | 1700°C | 5.6@20 °C µ ohm-cm |
31@20 °C %IACS |
4.6 ppm / °C | 165 W/m°k |
Related Products:
Tungsten's unique properties as a high performance material, including a melting point of 3410° C, low vapor pressure at elevated temperatures and low coefficient of thermal expansion, make tungsten rod of value in a variety of high temperature products and processes.
Important applications of cleaned tungsten wire are for the production
of coiled incandescent lamp filaments, cathode and support structures for power tubes, heating elements for high temperature furnaces and
evaporation sources in metalizing processes.
Non-Sag tungsten wires are indispensable for the lighting industry. For the necessary creep resistance, large elongated grains are considered as the desired microstructure.
Composite tungsten electrodes are electrodes adding two or two more rare earth oxides into tungsten, which are complementary to better their welding performance. Thus, they become extraordinary in electrodes family.