W1 Pure Tungsten Wire in Coil
Basic Info
Model No.: SYMT-Tungsten wire-1
Product Description
W1 Pure Tungsten Wire in Coil
Properties and Characteristics
High temperature property: According to the specific applications, high temperature property requirements are categorized.
Diameter consistency: Weight deviation of two consecutive 200mm wire pieces is less than 0.5% of nominal value.
Straightness: Regular tungsten wire: In accordance with customers` requirements.
Straightened tungsten wire: For the tungsten wire thinner than 100μm, vertical height of 500mm freely suspended wire should not be less than 450mm; For the tungsten wire at or thicker than 100μm, the maximum arc height between two pints with distance of 100mm is 10mm.
Surface conditions: Smooth surface, free of splits, burrs, cracks, dents, dots, grease contamination.
Coilability: No splits or breaks during coiling process.
Piece weight: Up to 5kgs for fine tungsten wire, 10kgs for heavy tungsten wire.
Conditions of Finished Products
Tungsten Wire Applications
Tungsten wire are used to make filaments of incandescent lamps, fluorescent lamps, and halogen lamps, electrodes of HID lamps, heating components, vacuum metalizing coils, and TIG welding electrodes.
Product Specifications
| Name | Type | Doped element content | W% | Diameter | Usage |
| Tungsten wire | W1 | | ≥99.95 | Φ0.40~1.80 | For high temperature and shaking resistive lamp,Double-spiral lamp wire ,fluorescence lamp,nomal lamp filament. |
| WAl1 | | ≥99.95 | Φ0.012~1.80 | ||
| WAl2 | | ≥99.95 | Φ0.012~1.80 | ||
| Cleaned Tungsten wire | WAl1 | | ≥99.95 |
Produce according to the demands of customer
| Used in electric vacuum and electric light source,electron tube ,car lamp series,halogen lamp,special lamp. |
| WAl2 | | ≥99.95 |
Sizes and Tolerances
| Diameter (μm) | Weight (mg/200mm) | 200mm Weight Tolerance (%) | Diameter Tolerance (%) | |||
| Grade 0 | Grade Ⅰ | Grade Ⅱ | Grade Ⅰ | Grade Ⅱ | ||
| 8 | 0.19 | ±3.0 | ±4.0 | ±5.0 | - | |
| 14 | 0.59 | ±2.5 | ±3.0 | ±4.0 | - | |
| 18 | 0.98 | ±2.0 | ±2.5 | ±3.0 | - | |
| 40 | 4.85 | ±1.5 | ±2.0 | ±2.5 | - | |
| 80 | 19.39 | ±1.0 | ±1.5 | ±2.0 | - | |
| 300 | 272.71 | - | ±1.0 | ±1.5 | - | |
| 350 | - | - | ±1.5 | ±2.0 | ||
| d>500 | - | - | ±1.0 | ±1.5 | ||
Note: Size and tolerances could be custom-made.
Tungsten wires are available in the following conditions
| Code | Conditions of Finished Products | Code | Conditions of Finished Products | Code | Conditions of Finished Products |
| C | Chemical Cleaned | DS | Drawn+ Straightened | EHS | Electrolytic Polished+ Annealed+ Straightened |
| CS | Chemical Cleaned + Straightened | E | Electrolytic Polished | ES | Electrolytic Polished+ Straightened |
| D | Drawn | EH | Electrolytic Polished+ Annealed | H | Annealed |
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Product Categories : Tungsten > Tungsten Wire