Black Pure Tungsten Filament Tungsten Wire for Heating Element

• Application: Aviation, Electronics, Industrial, Chemical
• Standard: GB, ASTM
• Purity: >99.95%
• Model NO.: W
• Alloy: Non-alloy
• Shape: Wire
• Type: Tungsten Wire
• Appearance: Black and White
• Density: 19.2gc/M3
• Transport Package: Exporting Wooden Case
• Specification: Dia0.015-2.5mm
• Trademark: JC
• Origin: Made in China
• HS Code: 8101960000
• Production Capacity: 20t/Year

Product Description

99.95% pure tungsten filament/tungsten wire product
Tungsten wire physical properties description:
1)Purity: 99.9% W
2)Density: 19.2g/cm3
3)Surface: black & white
Tungsten wire: It is regular covered with graphite, after removed graphite, it is metallic luster.
3) Pure tungsten size: Dia(0.04-2.0)mm
    Pure tungsten twisted wire:number of strands: 1-10(strands)
    Difference between 2 feet(mm): Big heater element: ± 2mm; Small heater element: ± 1mm
    Inside diameter tolerance: ± 0.3mm
 Specifications:(mm)

mm	diameter	length	Diameter tolerance	surface	State
rod	8.0~16.0	10~850	10~660	Black	forged
	3.0~8.0	10~5000	10~800	Black	forged
wire	1.5~3.0	10~8000	10~1600	Black	drawing
	0.5~1.5	10~8000	10~2650	Black	drawing

4) Application of tungsten  wire: Mainly used as electrical parts in light sources, cutting wires and heating elements. 

5)Chemical test:

Content of tungsten	Content of all other elements	Content of each element
≥99.95%	≤0.05%	≤0.01%