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
