Brand Name : FOTMA
Model Number : W-1, W-2, WAL-1
Certification : ISO 9001:2008
Place of Origin : P.R. China
MOQ : 1 pc
Price : Negotiable
Payment Terms : T/T, L/C, Western Union, PayPal
Supply Ability : 2 MT / Month
Delivery Time : 20-25 days
Packaging Details : Plastic boxes, Paper cartons
W Purity : > 99.95%
Diameter : 1.0mm
Length : Customized
Surface : Electropolished
Density : 19.2 g / cc
Tolerance : + / - 0.05mm
High Purity 99.95 Pure Tungsten Wire Polished Surface 1.0mm for Vacuum Metallizing
Pure tungsten is a steel-gray to tin-white metal. Very pure tungsten can be cut with a hacksaw, forged, spun, drawn, and extruded. The impure metal is brittle and can be worked only with difficulty. Tungsten has the highest melting point of all metals, and at temperatures over 1650oC has the highest tensile strength. The metal oxidizes in air and must be protected at elevated temperatures. It has excellent corrosion resistance and is attacked only slightly by most mineral acids. The thermal expansion is about the same as borosilicate glass, which makes the metal useful for glass-to-metal seals.
Introduction of Polished Tungsten Wire:
1. Purity: 99.95%
2. Grade: W1, W2, WAL-1
3. Density: no less than 19.2g/cm3
4. Package: Plastic spools, Vacuum Packing
5. Features: excellent formability, long life and super lighting efficiency. Mainly used for making various electron tube, H series auto lamp,halogen lamp and other special lamp.
Applications of Tungsten Wires:
With a high melting point, high hardness and good thermal and electric conductivity, tungsten wire is mainly used in powder metallurgical, lighting, electronics, high-temperature furnace, aerospace, chemical and glass ceramics industries for its heat, abrasion and corrosion resistance and chemical stablilty.
Appearance: W-wire is regular black covered with graphite. After graphite is removed it is metallic luster.
Advantages of Tungsten Wire:
•Tungsten has the highest melting point of all metals
• High strength at high temperatures
• Good conductivity for heat and electricity
• High absorption capacity for radioactive radiation and X-rays
Polished Tungsten Wire Chemical Composition:
Trade Mark | W Min Content % | All Impurities Min Content % | Each Impurity Min Content % |
WALl,WAL2 | 99.95 | 0.05 | 0.01 |
W1 | 99.95 | 0.05 | 0.01 |
W2 | 99.92 | 0.08 | 0.01 |
Tungsten Wire Size Chart:
Diameter (μm) | Weight of 200mm length | Weight tolerance of 200mm length % | Diameter Tolerance % | ||||
0 Grade | Ⅰ rade | Ⅱ rade | 0 Grade | Ⅰ rade | Ⅱ rade | ||
5≤d≤12 | 0.075-0.44 | - | ±4 | ±5 | - | - | - |
12<d≤18 | >0.44-0.98 | - | ±3 | ±4 | -- | - | - |
18<d≤40 | >0.98-4.85 | ±2 | ±2.5 | ±3 | - | - | - |
40<d≤80 | >4.85-19.39±2 |
| ±2.0 | ±2.5 | - | -- | - |
80<d≤300 | >19.39-272.71 | ±2 |
| ±1.5 | - | - | - |
300<d≤350 | >272.71-371.19 |
| ±1.0 | ±1.5 | - | - | - |
350<d≤ 500 | - | ±2 | ±2.0 | ±2.5 |
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500 <d≤1800 | - | ±1.0 | ±1.5 | ±2.0 |
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Picture Show:
99.95% Tungsten Wire 1mm Polished Surface For Vacuum Metallizing Images |