Specifications

1.Purity:W1>=99.95%,W2>=99.92%.
2.Density: 19.3g /cm3
3.Diameter: 0.4 - 3.0mm
4.Standard: GB/T4181-1997.

Product name: twisted tungsten wire

1.Apperance:W-wire is regular black covered with graphite.Metallic luster after graphite removed.

2.We can provide the following size of tungsten wire:

 

Sort	Number of strands	Diameter (mm)	Difference between 2 feet mm		Inside diameter tolerance
			Big heater element	Small heater element
PIC 1	2-7	0.4-3.0	±1mm		±0.3mm
PIC 2	2-3	0.4 -1.0	±1mm		±0.3mm
PIC 3	2-7	0.4 -1.3	±1mm		±0.3mm
PIC 4	2-5	0.4-1.0	±2mm	±1mm	±0.3mm
PIC 5	2-5	0.4-1.0	±1mm		±0.3mm
PIC 6	2-10	0.4-1.0	Several  stranded  coils

 3.Application of tungsten wire :

For producing electric light source parts and electric vacuum components.

For producing heating elements and refactory parts in high temperature furnaces.

For producing heating elements used in vacuum metalizing or plating.

 4.Attached our pictures of tungsten wire for your reference:

 

  

 

 

5.Tungsten Physical Properties:

Density	lb/in3	0.7
	gm/cm3	19.27
Melting Point	°F	6170
	°C	3410
Thermal Conductivity	Cal/cm2/cm° C/sec	0.48
Specific Heat	Cal/gm/°C	0.032
Coefficient of Linear Thermal Expansion	micro-in/°F  x 10-6	4.3
	micro-in/°C  x 10-6	2.4
Electrical  Resistivity	micro-ohm-cm	5.5

 

6.We can also provide the following products,you may be interested in:

Molybdenum Product:			Molybdenum Sheet,Plate/Molybdenum Rod
			Molybdenum Crucible/Molybdenum Tube
			Molybdenum Special Shape Product
Tungsten Product:			Tungsten Sheet,Plate/Tungsten Rod
			Tungsten Crucible/Tungsten heat shield
			Tungsten Special Shape Product
Alloy Product:			TZM Alloy/Mo-La Alloy/W-Mo Alloy/Mo-Yt Alloy

 We are a manufacturing enterprise,welcome to visit.