Dia. 0.05mm-10.0mm, various lenth
As a high performance materials, Pure Tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity.
Characteristics:
1) Tungsten is a very hard, dense, silvery-white, lustrous metal that tarnishes in air, forming a protective oxide coating. In powder form tungsten is gray in color.
2) The metal has the highest melting point of all metals, and at temperatures over 1650
oC also has the highest tensile strength.
Pure tungsten is ductile, and tungsten wires, even of a very small diameter, have a very high tensile strength.
3) Tungsten is highly resistant to corrosion. It forms tungstic acid (H2WO4), or wolframic acid from the hydrated oxide (WO3) and its salts are called tungstates, or wolframates.
4) Tungsten is one of the five major refractory metals (metals with very high resistance to heat and wear). The other refractory metals are molybdenum, tantalum, rhenium and niobium.
Applications:
1) For redrawing
2) Making
stranded tungsten wire or
tungsten heater elements
3) Production of hi-temperature furnaces and electrodes of gas-discharge lamps
4) For halogen lamps and supports, grids for electro-tubes and lamps
Inner packing: Plastic spool
Outer packing: Cartons and wooden cases, or according customers' requirement
Tungsten wire specifications:
1: Black, as drawn condition, where drawing lubricants and oxides are retained on the surface,
2: Cleaned condition by firing in hydrogen or electrochemical etching.
Direction for Use:
1. Aquadag layer on the surface of wire should be removed before using the wire is not suitable for contacting with iron, nickel, carbon, when the temperature is higher than 1000. The wires should be preserved in dry room, in which the relative humidity should not surpass 65%, and keeping away from acid or alkali atmosphere.
2. Cleaned wires should be preserved in dry vessels.
Tungsten wire Spooling
Tungsten wire is spooled on clean, defect free spools. For very large diameters, tungsten wire is self coiled. Spools are level filled without piling near flanges. The outer end of the wire is properly marked and attached securely to the spool or self coil.
Specification:
1) Grade: HWAL1P, HWAL1G, HWAL1J
2) As finished: Black, electrolytic cleaned, hydrogen-sintered clean, straightened
| Cut to length Wire |
Flat Wire |
Square and Shaped Wire |
Rewinding and spooling |
Polishing and cleaning |
The "Service" Part has more information about Wire Further Processing.