Pure Tungsten Wire
2. Catalog: Tungsten product
3. Material: High purity tungsten
4. Purity: 99.95% min
5. Grade: W1
6. Density: 19.35 g/cm3
7. Surface: Black surface, White surface, Alkali washed surface
8. Dimensions: Dia 0.3mm-3.0mm
9. Production Process: Sintering, Forging, Wire drawing
10. Standard: ASTM B760
11. Application: High temperature furnace heaters, Support, Lead wire, Electrodes ect.
Pure tungsten wire is a high-purity refractory metal wire (typically ≥99.95%) designed for high-temperature, vacuum, and electronic applications, widely used in lighting filaments, heating elements, and semiconductor processing.
Features
Heat Resistance
Melting point up to 3422°C ensures stable performance in ultra-high temperature environments without deformation.
Durability
Tensile strength and ~19.3 g/cm³ density provide durability and reliability under mechanical and thermal stress.
Low Vapor Pressure
Maintains stability in vacuum and high-temperature conditions with minimal evaporation, ideal for vacuum systems.
Stable Electrical Performance
Good electrical and thermal conductivity supports efficient electron emission and heating applications.
Product Specification
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Pure Tungsten Wire Specifications |
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|
Diameter (μm) |
Weight (mg/200mm) |
Weight (mg/200mm) Tolerance (%) |
Diameter Tolerance (%) |
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|
Grade 0 |
GradeⅠ |
GradeⅡ |
Grade 0 |
GradeⅠ |
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|
5＜d≤14 |
0.19＜p≤0.59 |
±3.0 |
±4.0 |
±5.0 |
- |
|
|
14＜d≤18 |
0.59＜p≤0.98 |
±2.5 |
±3.0 |
±4.0 |
- |
|
|
18＜d≤40 |
0.98＜p≤4.85 |
±2.0 |
±2.5 |
±3.0 |
- |
|
|
40＜d≤80 |
4.85＜p≤19.39 |
±1.5 |
±2.0 |
±2.5 |
- |
|
|
80＜d≤300 |
19.39＜p≤272.71 |
±1.0 |
±1.5 |
±2.0 |
- |
|
|
300＜d≤350 |
272.71＜p≤371.18 |
- |
±1.0 |
±1.5 |
- |
|
|
350＜d≤500 |
- |
- |
±1.5 |
±2.0 |
||
|
d＞500 |
- |
- |
±1.0 |
±1.5 |
||
Product Chemical Composition
|
Pure Tungsten Wire Chemical Composition |
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|
Grade |
Tungsten Content |
Impurity Elements Content |
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|
Fe |
Mo |
/ |
/ |
Total Impurity |
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|
W1 |
≥99.95% |
≤0.002 % |
≤0.003% |
/ |
/ |
≤0.05% |
|
Note: Potassium is not included as impurity content. |
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Product Production Video
FAQ
What diameter range can you supply?
A: We offer a wide range of diameters, from ultra-fine wire (micron level) to thicker gauges, customizable based on your application requirements.
Can you provide customized specifications?
A: Yes, we support customization for diameter, length, surface condition, and mechanical properties according to drawings or technical requirements.
What surface conditions are available?
A: Tungsten wire can be supplied in black (as-drawn), cleaned, or polished conditions depending on application needs.
What is the typical lead time?
A: Lead time depends on specifications and order volume, but standard products are usually delivered within 2–4 weeks.
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