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As one of the most professional tungsten wire suppliers and tungsten wire manufacturers in China, HSG provides pure tungsten wire wholesale.
Tungsten wire, a thin wire made by forging and drawing tungsten strips. Our tungsten wire is crafted from high-quality materials and meticulously engineered to meet the strictest industry standards. Whether you need tungsten wire for filament wire, welding wire or heating elements, we've got you covered. Our tungsten wire is available in a range of diameters and lengths to meet your specific needs and requirements.
Our pure tungsten wire brands: WAl1, WAl2, W1, W2
HSG Metal is one of the most professional tungsten wire manufacturers and suppliers in China. We produce high-quality tungsten wire products for our clients from all over the world. Contact us today and get the latest tungsten wire price.
Brand | Tungsten Content /%≥ | The sum of impurity elements /%≤ | The content of each element /%≤ |
WAl1,WAl2 | 99.95 | 0.05 | 0.01 |
W1 | 99.95 | 0.05 | 0.01 |
W2 | 99.92 | 0.02 | 0.01 |
Brand | WAL1,WAL2 | W1,W2 | |
Black wire | White wire | ||
Min Diameter(mm) | 0.02 | 0.005 | 0.4 |
Max Diameter(mm) | 1.8 | 0.35 | 0.8 |
Tungsten wire is highly valued for its unique properties, including high melting point, strength, and durability, which make it useful in a wide range of applications:
Lighting: Tungsten wire is commonly used as the filament in incandescent bulbs because it glows and withstands high temperatures without melting.
Electronics: It's used in vacuum tubes, heating elements, and semiconductors for its good conductivity and high-temperature resistance.
Medical Equipment: Tungsten wire is used in X-ray machines and imaging devices, as it can effectively absorb X-rays for precise imaging.
Aerospace and Defense: Its high density and heat resistance make it ideal for aerospace parts and military ammunition.
Jewelry: Tungsten's scratch resistance makes it popular for rings and other jewelry.
Industrial Manufacturing: Tungsten wire is used in tools for cutting, drilling, and milling due to its durability.
Temperature Measurement: Tungsten wire is also used in thermocouples to measure high temperatures in furnaces and kilns.
HSG Metal, as a professional tungsten wire manufacturer, provides pure tungsten wire to our clients from different industries. If you want to find a trustworthy pure tungsten wire supplier, don't hesitate to contact us!
The production of tungsten wire mostly uses ammonium paratungstate (APT) as raw material. The general process is to roast ammonium paratungstate into tungsten trioxide in air at about 500℃, or slightly reduce it into blue tungsten oxide in hydrogen at about 450℃. The tungsten filament for an incandescent light bulb requires tungsten trioxide or blue tungsten oxide mixed with small amounts of potassium oxide, silicon oxide, and alumina, which together amount to no more than 1%.
High Melting Point: Withstands extreme temperatures up to 3,422°C, ideal for lamps and heating elements.
Strength and Density: Highly durable, resisting deformation under mechanical and thermal stress.
Thermal Conductivity: Transfers heat effectively, useful in heating applications and thermocouples.
Low Thermal Expansion: Minimal expansion under heat, maintaining shape in high-precision applications.
Electrical Conductivity: Stable conductor, suitable for filaments and electrodes.
Corrosion Resistance: Resists wear, oxidation, and corrosion, ensuring longevity.
Low Vapor Pressure: Reduces evaporation at high temperatures, preserving filament integrity.
In addition to a small amount of tungsten filament used as the heating material of high-temperature furnaces, the heat of electron tubes, and the reinforcement of composite materials, most of the tungsten filament is used to make various incandescent lamps and halogen tungsten lamps and electrodes of gas discharge lamps. For THE TUNGSTEN WIRE OR TUNGSTEN ROD USED AS THE cathode of a gas discharge lamp, 0.5~3% THORIUM should be added, which is called tungsten and thORIUM wire, in order to reduce the electron escape work. Because thorium is a radioactive element and pollutes the environment, it is useful to make tungsten cerium wire or tungsten cerium rod instead of thorium. However, cerium has a high evaporation rate, so the tungsten cerium wire or rod can only be used for low-power gas discharge lamps.
High-Temperature Performance
Tungsten wire filaments in incandescent lamps operate between 2300°C and 2800°C. Higher power lamps elevate the filament temperature, often surpassing tungsten's recrystallization point. At this point, the filament softens under its weight, causing sagging between the support hooks. This sagging can worsen over time, and in severe cases, the filament may droop enough to touch the glass shell, potentially damaging the bulb.
Room Temperature Performance
At room temperature, tungsten wire performance is assessed during winding. Due to its long processing flow, tungsten is prone to developing small cracks or localized brittleness if manufacturing quality isn’t tightly controlled. These flaws make the wire vulnerable to breakage when wound, resulting in either hairline fractures from cracks or crystal-like flares from brittle sections.
Consistency of Wire Diameter
Uniform tungsten filament diameter is crucial for stable photoelectric performance in incandescent bulbs. Variations in diameter can disrupt the electric flow, leading to inconsistent lighting and a shorter bulb lifespan. Ensuring consistent filament diameter enhances both the performance and durability of the bulb.
These factors highlight the importance of controlling temperature resilience, handling durability, and diameter uniformity to optimize the performance and lifespan of tungsten filaments in lighting applications.
