Tungsten

Check the physical and mechanical properties below to choose the best tungsten copper alloy for your application.

We also provide Tungsten Carbide Copper and Tungsten Carbide Silver.

Specification

Tungsten (W) is one of the so-called transition metals with the atomic number 74,it’s shiny gray metal in a solid state at room temperature.Tungsten has many outstanding characteristics,it has the highest melting point of all metal elements of 3422°C,and boiling point around 5,700°C closing to the surface temperature of Sun,thus it can withstand a very high temperature.With a high density of 19.3 g/cm³, closely to gold density,tungsten is widely used as balance weights for aircraft and helicopter.Tungsten is also resisted to various acid in room temperature,ever for hydrofluoric acid and aqua regia. 
Tungsten Crucible are characterized by high purity, high density, free of internal cracks, precise size and smooth inner and outer walls, was mainly used as the core container of  sapphire growth furnace,quartz glass melting furnace and rare earth blast  furnace.Especially for sapphire growth furnace,the tungsten crucible used have an big influence to the seed success rate, pulling quality control,crystal stick pan off and working life for sapphire crystal growing.

Chemical specification and Dimension

Tungsten (W) is one of the so-called transition metals with the atomic number 74,it’s shiny gray metal in a solid state at room temperature.Tungsten has many outstanding characteristics,it has the highest melting point of all metal elements of 3422°C,and boiling point around 5,700°C closing to the surface temperature of Sun,thus it can withstand a very high temperature.With a high density of 19.3 g/cm3, closely to gold density,tungsten is widely used as balance weights for aircraft and helicopter.Tungsten is also resisted to various acid in room temperature,ever for hydrofluoric acid and aqua regia. 
During production process, the surface of tungsten wire was black coated with graphite, when graphite emulsion was removed,tungsten wire shows metallic luster. The surface of tungsten wire is free of burrs, cracks, scratches, pits, uneven, and oil.
Chemical specification:W≥99.95%(exclude gas content)
Dimension and tolerance:

Application:

• Manufacturing electric light resource and electric vacuum parts;
• Heating element and fabricated components applied in high temperature;
• To manufacture tungsten spiral applied in the vacuum deposition 

Storage:

Tungsten wire should be kept in clear and dry place,with room temperature not higher than 28 ℃, humidity less than 60%.It should be kept away from chemicals,cleaned wire should vacuum packaging to prevent surface oxidation.Tungsten materials are brittle at room temperature, do not vibrate or collision rapidly when moving.