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V-shaped tungsten wire filaments
High purity, vacuum grade tungsten wire 0.50mm diameter, V-shaped filaments 12.7mm deep, with a bottom angle of 45°, either single wire or triple strand.ProductOverall LengthNo. StrandV-OpeningEMS7384076.2mmSingle19mmEMS7384276.2mmTriple16mmEMS7384488.9mmTriple19mm...
High purity, vacuum grade tungsten wire 0.50mm diameter, V-shaped filaments 12.7mm deep, with a bottom angle of 45°, either single wire or triple strand.
| Product | Overall Length | No. Strand | V-Opening |
| EMS73840 |
76.2mm | Single | 19mm |
| EMS73842 |
76.2mm |
Triple | 16mm |
| EMS73844 |
88.9mm | Triple | 19mm |
Tungsten has the highest melting point and lowest vapour pressure of all metals, and at the temperatures over 1650°C has the highest tensile strength. It has excellent corrosion resistance and is attacked only slightly by most mineral acids.
Tungsten is the most useful material used in vacuum evaporation technique, due to its special properties and cost factor.
Properties of Tungsten
| Chemical symbol: | W |
| Atomic Radius: | 2.02Å |
| Atomic Volume, cm3/mol: | 9.53 |
| Covalent Radius: | 1.3Å |
| Crystal Structure: | Body centered cube |
| Number of Electron (with no charge): | 74 |
| Atomic Number of Protons: | 74 |
| Number of Neutrons (most common/stable nuclide): | 110 |
| Ionic Radius: | 0.62Å |
| Cross Section: | 18.5 barns ± 0.5 |
Please choose carefully. Returns of this item are subject to approval.
| Code | Title | Size | Pack Size | Availability | Price | Updated: 12-05-2024 |
|---|---|---|---|---|---|---|
| EMS73840 | V-shaped tungsten wire filaments | 76.2mm x 19mm | Pack/10 | See above | $58.00 AUD | |
| EMS73842 | V-shaped tungsten wire filaments | 76.2mm x 16mm | Pack/10 | See above | $107.00 AUD | |
| EMS73844 | V-shaped tungsten wire filaments | 88.9mm x 19mm | Pack/10 | See above | $90.00 AUD | |
