Thin Tungsten Wire
The thin tungsten wire is a precise metal wire meticulously manufactured from high-purity tungsten, featuring extremely high melting point, outstanding tensile strength, and stable electrical performance in harsh environments. It is widely used in the production of filament for halogen lamps and incandescent lamps, heating elements of high-temperature furnaces, as well as electron emission sources in vacuum tubes and semiconductor devices. Due to its low vapor pressure, strong conductivity, and excellent resistance to deformation, the fine tungsten wire can operate stably and reliably in high-temperature and low-pressure environments such as vacuum systems, medical X-ray equipment, and scientific instruments. Additionally, we offer comprehensive customization services, covering diameters, surface treatments, mechanical properties, lengths, and packaging, to meet specific requirements of different application scenarios.
- Product Introduction
Thin Tungsten Wire
The thin tungsten wire is a precise metal wire meticulously manufactured from high-purity tungsten, featuring extremely high melting point, outstanding tensile strength, and stable electrical performance in harsh environments. It is widely used in the production of filament for halogen lamps and incandescent lamps, heating elements of high-temperature furnaces, as well as electron emission sources in vacuum tubes and semiconductor devices. Due to its low vapor pressure, strong conductivity, and excellent resistance to deformation, the fine tungsten wire can operate stably and reliably in high-temperature and low-pressure environments such as vacuum systems, medical X-ray equipment, and scientific instruments. Additionally, we offer comprehensive customization services, covering diameters, surface treatments, mechanical properties, lengths, and packaging, to meet specific requirements of different application scenarios.
Features
1. High melting point and excellent heat resistance:
The fine tungsten wire can remain non-melting and unchanged at extremely high temperatures, making it highly suitable for continuous operation in high-temperature furnaces, filament lamps, and heating components subjected to severe thermal stress.
2. High mechanical strength:
Despite its extremely fine diameter, the fine tungsten wire still exhibits excellent mechanical strength, effectively reducing the risk of fracture during installation, winding, and long-term operation in precision and industrial applications.
3. Stable electrical performance:
The fine tungsten wire has reliable conductivity and stable resistance values, ensuring stable current flow and suitable for filaments, electronic emission devices, and components requiring precise and controllable heating.
4. Low vapor pressure in a vacuum environment:
Under high-temperature conditions, the fine tungsten wire hardly undergoes material evaporation, thus having a longer service life and stable performance in vacuum tubes, X-ray equipment, and other low-pressure systems.
5. Good chemical stability:
In inert or controlled environments, the fine tungsten wire can maintain stable performance and has strong resistance to chemical reactions, suitable for laboratory equipment, research applications, and industrial processes requiring stable material properties.
Application
1. Lighting industry:
Fine tungsten filaments are widely used as the filament in halogen lamps and incandescent lamps, efficiently converting electrical energy into heat and light energy. The combination of its high melting point and stable electrical properties ensures stable lighting effect during continuous operation and prolongs the service life.
2. Vacuum and electronic device field:
In vacuum tubes, X-ray equipment, and electronic emission systems, fine tungsten filaments are used as heating filaments or cathodes. Their low vapor pressure and excellent stability in a vacuum environment guarantee reliable electron emission and stable long-term operation.
3. High-temperature furnace field:
Fine tungsten filaments are used as heating elements or supporting components in high-temperature furnaces, maintaining their shape without deformation under extreme high temperatures, ensuring structural integrity and reducing material damage during continuous high-temperature processing.
4. Medical equipment field:
In medical imaging systems such as X-ray machines, fine tungsten filaments are used as electron emission sources. Their excellent conductivity, heat resistance, and stability ensure precise and stable performance, which is crucial for imaging accuracy and equipment reliability.
5. Scientific and laboratory application field:
Fine tungsten filaments are applied in research instruments and experimental devices that require precise temperature control and stable material performance. They can operate reliably in vacuum, inert gas, and high-temperature environments, thus suitable for advanced scientific and laboratory applications.
Specification
|
Parameter |
Details |
|
Product Name |
Thin Tungsten Wire |
|
Material |
High Purity Tungsten (W ≥ 99.95%) |
|
Diameter Range |
0.01 mm – 0.50 mm (custom sizes available) |
|
Tolerance |
±0.001 mm – ±0.005 mm (depending on diameter) |
|
Surface Condition |
Black (graphite-coated) / Cleaned / Polished |
|
Density |
19.3 g/cm³ |
|
Melting Point |
3422°C |
|
Tensile Strength |
1500 – 3000 MPa (varies by diameter & condition) |
|
Electrical Resistivity |
5.5 × 10⁻⁸ Ω·m |
|
Elongation |
1% – 3% |
|
Temperature Resistance |
Up to 3000°C+ in controlled environments |
|
Shape/Form |
Spool wire / Straightened / Cut lengths |
|
Processing Type |
Drawn / Annealed / Doped (K, Al, Si optional) |
|
Standard |
ASTM B760 / GB/T 4181 (or equivalent) |
|
Operating Environment |
Vacuum / Inert gas / High-temperature air (limited) |
|
Packaging |
Coil, spool, or customized packaging |
|
Customization |
Diameter, length, surface, and mechanical properties customizable |
Customized Service
1.Diameter and tolerance can be customized as per your requirements
Our wire products offer unparalleled flexibility in diameter customization. The diameter range is extremely wide, ranging from extremely fine micrometer-sized dimensions to larger specifications. We can easily cover all these ranges. What's more, we have strict tolerance control capabilities. For applications such as fine wires, electronic components, and scientific instruments that have strict requirements for dimensional accuracy, our wire products can perfectly adapt and meet their high standards.
2. Various surface treatments are available for your selection
We offer a wide range of surface treatment options for you to choose from. Among them, the black wire is coated with a graphite layer, and the wire that has undergone cleaning treatment is clean and free of impurities, while the wire that has undergone polishing treatment is smooth and shiny. You can select the appropriate surface condition based on different application requirements, such as vacuum systems or lighting fields. The appropriate surface treatment helps enhance the stability, conductivity of the wire, and also extends its service life.
3. Mechanical properties can be adjusted as needed
Through annealing or doping processes, we can precisely adjust the mechanical properties of the conductors. For instance, adding elements such as potassium, aluminum, and silicon to tungsten can alter the tensile strength, elongation rate, and flexibility of the conductors. These treatment methods not only enhance the conductors' resistance to sagging but also effectively reduce the risk of breakage during installation and long-term operation.
4. Personalized Services for Length, Coiling and Cutting
We can provide you with custom-length rolls, straightened wire sections, or pre-cut segments according to your specific requirements. Moreover, we employ professional winding and packaging methods to ensure the safety and integrity of the wire during transportation, facilitating your subsequent operations and reducing the likelihood of wire tangling or damage.
5. Customized solutions based on application
For different application scenarios, such as lighting filaments, vacuum equipment, medical equipment, and components of high-temperature furnaces, we can develop customized solutions for you. We will precisely adjust parameters such as temperature tolerance, environmental conditions (vacuum/inert gas), and electrical performance based on actual operation conditions, ensuring that the wire perfectly meets your application requirements.
6. Quality Inspection and Consistency Control
We conduct strict inspections on each batch of products, covering various aspects such as diameter accuracy, surface quality, and mechanical performance. Through consistent quality control, we ensure the stability and reliability of product performance across different production batches, which helps to reduce your operational risks and enhance the reliability of the wire in its final application.
FAQ
1. What are the common uses of thin tungsten wire?
Fine tungsten wire has a wide range of applications. It is commonly used as the filament in lighting devices (such as halogen lamps and incandescent lamps), as a heating element in high-temperature furnaces, and as an electron-emitting component in vacuum tubes, X-ray machines, and scientific instruments.
2. What is the range of diameters?
The diameter of fine tungsten wires is quite wide, ranging from extremely fine micrometer-sized (approximately 0.01 millimeters) to larger sizes (up to 0.5 millimeters or even larger). Moreover, we can customize tungsten wires of specific diameters according to your specific application requirements.
3. Can tungsten wire operate in high-temperature conditions?
Sure. The melting point of tungsten is extremely high, approximately 3422 degrees Celsius. This enables tungsten wires to operate stably at high temperatures, even in a vacuum or in an inert gas environment, maintaining excellent performance.
4. What are the surface options available?
The common surface types include black (coated with graphite), cleaned, and polished wires. Depending on different application requirements, such as for lighting, vacuum use, or in the field of electronic components, we will recommend the appropriate surface condition for you.
5. Is thin tungsten wire suitable for a vacuum environment?
Absolutely. The vapor pressure of fine tungsten wire is very low, and it has excellent stability in a vacuum environment. Therefore, it is commonly used in vacuum tubes, electron emission systems, and related equipment.
6. Can this wire be customized?
Sure. We offer a variety of customization options, including diameter, length, surface condition, mechanical properties, and packaging form, etc. Additionally, we provide products with tungsten filaments (containing potassium, aluminum, and silicon) to meet your needs for enhancing performance in specific applications.
7. How is the tungsten wire packaged?
Tungsten wire is usually supplied in the form of rolls, spools, or cut lengths. We will use the appropriate packaging method to ensure that the tungsten wire remains safe and undamaged during transportation, making it convenient for you to operate when using it.
8. Which industries will use this material?
This material is widely applied. It can be found in fields such as lighting, electronics, vacuum technology, medical equipment (such as X-ray equipment), high-temperature furnaces, and scientific research.
9. How to select the appropriate specification?
Selecting the right specification requires considering several factors, including working temperature, environmental conditions (vacuum, inert gas, air), required diameter, electrical performance, and mechanical strength, etc. For specific applications, we recommend that you adopt a customized solution.
Call To Action
Beijing Free Run Technology Co., Ltd. is a professional manufacturer with over 11 years of experience, specializing in tungsten and molybdenum products including precision tungsten wire.. The company integrates R&D, production, and global sales, supported by advanced equipment, strict quality control, and multiple international certifications such as ISO and CE. With strong customization capabilities, stable product quality, and one-stop service from pre-sales consultation to after-sales support, it serves customers across Europe, North America, and Asia, providing reliable solutions for high-temperature and precision applications.
If you have specific requirements for diameter, tolerance, surface condition, length, or application, our engineering team can provide tailored recommendations and a customized quotation. Please feel free to contact us to request a quote, get free samples, or consult with our engineers for professional technical support.
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