Tungsten Wire
Tungsten is widely used as refractory metals. In wire form, tungsten wire is essential for the production of lighting products and other goods where its high temperature properties are of use. Among its properties are a melting point of 3410° C, a low coefficient of thermal expansion and low vapor pressure at elevated temperatures along with good electrical and thermal conductivity.
The important applications of 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 metallizing processes. Thicker sizes of tungsten wire, straightened, finish-ground and cut into rod pieces are widely used for glass-to-metal seal lead parts in the lighting and electronic industries.
| Diameter µm |
Weight mg/200mm |
200mm weight tolerance% | Diameter tolerance% | |||
| 0 | I | II | I | |||
| 6<d<18 | 0.12-0.98 | - | ±3 | ±4 | ||
| 18<d<40 | >0.98-4.85 | ±2 | ±2.5 | ±3 | ||
| 40<d<80 | >4.85-19.39 | ±1.5 | ±2.0 | ±2.5 | ||
| 80<d<300 | >19.39-272.71 | ±1.0 | ±1.5 | ±2.0 | ||
| 300<d<350 | >272.71-371.19 | ±1.0 | ±1.5 | |||
| 350<d<500 | ±1.5 | ±2.0 | ||||
| 500<d<1800 | ±1.0 | ±1.5 | ||||
Tungsten wire, including black tungsten wire, cleanded tungsten wire, rhenium tungsten wire, doped tungsten wire, non-sag tungsten wire, gold plated tungsten wire, stranded tungsten wire, etc. They can be used to making tungsten heater, tungsten filament, etc.
Please do not hesitate to contact us if you have any other question. Our e-mail address is sales@chinatungsten.com, sales@xiamentungsten.com. Or you can call us by 0086 592 5129595/5129696.
More info>>
1.Black Tungsten Wire
2.Cleaned Tungsten Wire
3.Catalog of tungsten wire
4.Quotation table of tungsten wire