1.Purity:W1>=99.95%,W2>=99.92%. 2.Density: 19.3g /cm3 3.Diameter: 0.3 - 3.0mm 4.Standard: GB/T4181-1997.

High quality Stranded tungsten wire

Specifications: 1) Size: 0.5-7.0mm 2) Material:pure tungsten and tungsten alloy

3) As finished: black wire, electrolytic cleaned wire, hydrogen-sintered cleaned    wire, straightened4) Property: good winding property, non-sag, high temperature resistant

Application: 1) For production of filaments for lamps of coiled-coil or three-coiled incandescentlamp, fluorescent lamp, halogen lamp, auto lamp and hi-color temperature lamps,etc. 2) For making supports and electron tubes

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

4).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

 Element composition:

Grade	W(%)≥	Total of rest element(%)<	Each of element(%)<
WAL1 WAL2 WAL3	99.92	0.08	0.01

Quality and test:

test and check to ensure materials meet nondestructive testing technology destructive and according to industry and the customer's specifications.

More than10 year's experience, exported various of refractory products(tungsten molybdenum tantalum niobium) over than 2000 T yearly.

 

Tungsten heater element