99.95% Pure Customized Tungsten Products Tungsten Stranded Wire Heating Elements
Specification of Tungsten Stranded Wire:
1. Purity: 99.95%
2. Density: 19.3g/cm3
3. Type: W3101, W3102, W34, W1, W2
4. Content: W3 W34 W2: W≥ 99.95%
5. Character and usage
W3101: Twist wire; It has good character in high temperature and endurance. Second crystal temperature≥ 1950º C, mainly used as filament wire in halogen filament, high temperature color filament, twist filament, white filament and fluorescence filament.
W3102: It has good character in roll and high temperature. Second crystal temperature≥ 1850º C, mainly used in white filament wire, vacuum tube heating wire.
W34: Used in twist wire.
W1 W2: Used as frame of vacuum tube, heating elements.
6. Super thin white tungsten wire.
Spaces: 3-14um
Diameter Tolerance of Tungsten Stranded Wires / Rods:
| Diameter (mm) | Diameter tolerance |
| Black percent | Polished mm |
| Wire | 0.5-0.8 | ± 2 | - |
| > 0.8-3.0 | ± 0.03 |
| Rods | > 3.0-6.5 | ± 0.05 |
| > 6.5-11.0 | ± 0.08 |
Material Composition of Tungsten Wires for Heating Elements:
| Grade | W MIN
% | Total impurity content % min | Each impurity content
% min |
| WAL1,WAL2 | 99.95 | 0.05 | 0.01 |
| W1 | 99.95 | 0.05 | 0.01 |
| W2 | 99.92 | 0.08 | 0.01 |
