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Industrial-Grade High-QualityRods.jpg

Industrial-Grade Pure Tungsten Rods - W1 Model Exclusive Solution

The W1 model pure tungsten rods are rod-shaped products made of high-purity tungsten raw materials through multiple precision processes such as powder metallurgy, pressure processing, vacuum annealing and precision grinding. In the industry, pure tungsten rods with a diameter ＞0.5mm are usually defined as standard tungsten rods. With ultra-high tungsten content of ≥99.95% as the core advantage, the product eliminates interference from excess impurities. Relying on extreme high-temperature resistance, excellent mechanical properties and stable chemical properties, it plays an irreplaceable role in fields with strict requirements on material purity and reliability such as high-temperature load-bearing, precision electrodes and high-end structural parts. It is a core basic material to ensure high performance and long service life of equipment.

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    Product specification

    Product Parameters
    Product Information

    Item

    Details

    Diameter/Side Length (Round/Square Rods)

    0.5mm-100mm (standard), special sizes (100-200mm) can be customized

    Length

    100-3000mm (standard), maximum customizable length up to 6000mm, support cutting on demand

    Tolerance Range

    Diameter/Side Length Tolerance: ±0.01-0.1mm (classified by precision grade), customized according to international standard (ASTM B760) or customer requirements
    Product Name  Pure Tungsten Rods
    Brand Name  Yunjie
    Model  W1 (Exclusive Pure Tungsten Model)
    Material  Pure Tungsten, Tungsten Content ≥99.95%
    Process  Powder Metallurgy + Pressure Processing (Forging/Rolling/Extrusion) + Vacuum Annealing + Precision Grinding and Polishing
    Density  19.3g/cm³
    Advantages  Extreme High-Temperature Resistance (Melting Point 3410℃), Ultra-High Purity with No Impurities, High Strength and Hardness, Wear and Corrosion Resistance, Excellent Electrical and Thermal Conductivity, Low Thermal Expansion Coefficient, Strong Structural Stability, High Straightness
    Surface Treatment  Ground Surface, Polished Surface, As-Cast Surface
    Shape  Round Rods, Square Rods, Special-Shaped Rods (Processed on Demand)
    Processing Services  Precision Cutting, Cylindrical Grinding, Thread Machining, Drilling, Welding, CNC Machining
    Minimum Order Quantity  1 piece (or 3 kg, calculated according to the actual order)

    Classification

    Industrial-Grade High-QualityRods
    • Classification by Diameter/Side Length
      •Thin Tungsten Rods (0.5mm-5.0mm): Suitable for scenarios with strict requirements on dimensional accuracy, purity and lightweight, such as precision electrodes, micro-sensors and small electronic components.
      •Medium-Thick Tungsten Rods (5.0mm-20.0mm): Applicable to conventional electrodes, high-temperature furnace accessories and precision mechanical shaft parts that need to balance purity, strength and processability.
      •Thick Tungsten Rods (20.0mm-100.0mm and above): Suitable for heavy structural parts, core shafts of high-temperature furnaces and high-end mold inserts with extremely high requirements on high-temperature resistance, load-bearing capacity and purity stability.
    • Classification by Production Process

    Specification Selection Table and Composition Table

    W1 Model Pure Tungsten Rods Specification Selection Table
    Chemical Composition Table

    Diameter/Side Length Range

    Dimensional Tolerance

    Core Characteristics

    Applicable Scenarios

    0.5-5.0mm

    ±0.01-0.03mm (Precision Grade); Length according to international standard or customization

    Ultra-fine and precise, smooth surface, ultra-high purity with no impurities, excellent electrical and thermal conductivity, good straightness

    Semiconductor manufacturing electrodes, electron tube cathodes, micro high-temperature sensor probes, precision instrument conductive shafts, medical equipment micro-components

    5.0-20.0mm

    ±0.03-0.08mm (High Precision Grade); Length according to international standard or customization

    Qualified purity, moderate strength, wear and corrosion resistance, good processability, strong thermal stability

    High-purity electrodes in metallurgical industry, high-temperature furnace heating rods, chemical corrosion-resistant shafts, precision mechanical transmission shafts, new energy equipment conductive components

    20.0-100.0mm

    ±0.08-0.1mm (Standard Grade); Length according to international standard or customization

    Ultra-high purity guarantee, high high-temperature strength, strong load-bearing capacity, excellent hardness, good deformation resistance

    High-temperature resistant shafts of aerospace engines, wear-resistant insert rods of heavy machinery, high-temperature section components of pressure vessels, core components of nuclear industry equipment, large high-temperature furnace shafts

    Grade

    W

    Impurity Content, Max. (≤)

    Impurity Content, Max. (≤)

    Impurity Content, Max. (≤)

    Impurity Content, Max. (≤)

    Impurity Content, Max. (≤)

    Impurity Content, Max. (≤)

     

     

    Fe

    Ni

    Si

    C

    N

    Residuals

    W1

    ≥99.95

    0.01

    0.01

    0.01

    0.01

    0.01

    0.03

    Characteristics

    01
    Ultra-High Purity Guarantee
    Tungsten content ≥99.95% with extremely low impurity content, effectively avoiding impurity interference on the electrical, thermal and high-temperature properties of materials, suitable for high-end application scenarios sensitive to purity.
    advantage-2
    02
    Extreme High-Temperature Resistance
    Melting point up to 3410℃, maintaining stable mechanical properties below 1600℃, capable of withstanding extreme high-temperature environments without softening and deformation, making it the preferred pure tungsten material for high-temperature scenarios.
    advantage-2
    03
    High Strength and Hardness
    Hardness up to HRC35-45 at room temperature, excellent tensile strength and outstanding wear resistance, capable of bearing high loads, high friction and impact losses, with service life far exceeding ordinary metal rods.
    advantage-2
    04
    Excellent Electrical and Thermal Conductivity
    Conductivity is about 30% of copper, with good thermal conductivity and extremely low thermal expansion coefficient (only 1/3 of steel), suitable for scenarios with high requirements for precision conduction, heat dissipation and thermal stability.
    advantage-2
    05
    Stable Chemical Properties
    Not easy to react with oxygen, water vapor, etc. at room temperature, resistant to acid and alkali corrosion (except for a few media such as hydrofluoric acid and concentrated nitric acid), suitable for complex corrosive environments with strong chemical stability.
    advantage-2
    06
    Good Processing Adaptability
    Can be formed through various processing methods such as forging, rolling, cutting, welding and thread machining. Toughness is further improved after vacuum annealing, which can meet the manufacturing needs of complex structural parts with low processing loss.
    advantage-2
    07
    Non-Magnetic and Radiation Resistance
    No magnetic interference, suitable for scenarios sensitive to magnetism such as electronic instruments and navigation equipment; has certain radiation resistance, and can be used for core components of nuclear industry related equipment.
    advantage-2
    08
    High Straightness and Density
    After precision processing and annealing treatment, the rods have excellent straightness, dense internal structure, no defects such as pores and cracks, ensuring component assembly accuracy and operation stability.
    advantage-2

    Production Process

    1. Raw Material Preparation: The foundation for product quality is laid by choosing high-purity tungsten concentrate, preparing high-purity tungsten powder (purity ≥99.95%) by various purification procedures such roasting and reduction, and tightly controlling powder particle size, fluidity, and purity.
    2. Powder Forming: Combine a specific amount of high-purity tungsten powder with a proprietary binder, then use molding, isostatic pressing, and other techniques to press and form the mixture into rod-shaped blanks that have a uniform density, a full structure, and no visible flaws.
    3. Sintering Treatment: To create high-purity tungsten rod blanks and increase material density and strength, place the produced rod blanks in a high-temperature sintering furnace and sinter under vacuum or hydrogen protection to eliminate binders and accomplish densification.
    4. Pressure Processing: Choose a forging, rolling, or extrusion process based on the size and performance requirements of the product; rolling/extrusion is appropriate for medium-thin rod production to precisely control diameter accuracy and straightness, while forging is appropriate for thick rod processing to improve material density and grain uniformity.
    Industrial-Grade High-QualityRods
    Industrial-Grade High-QualityRods

    Production Process

    1. Vacuum Annealing: To remove processing internal stress, optimize grain structure, enhance material toughness, plasticity, and high-temperature stability, and prevent further processing deformation, place the processed tungsten rods in a vacuum annealing furnace and apply heat preservation treatment at a particular temperature.
    2. Precision Processing: Precise control over the diameter, length, and straightness of tungsten rods can be achieved by precision grinding, polishing, straightening, and other procedures. Surface finish can also be optimized and customized processing, such as threads and unique forms, can be carried out on demand to satisfy clients' specific requirements.
    3. Finishing and Inspection: Make sure the product's dimensions are accurate, the surface is qualified, the purity satisfies standards, and there are no internal defects by using dimensional measurement, surface flaw detection, non-destructive testing (ultrasonic, radiation testing), purity testing, and other procedures. Attach the material inspection report and quality certificate.

    Application Fields

    01
    Aerospace
    Produce precision conductive rods for aviation instruments, inner liner rods for rocket nozzles, high-temperature resistant support rods for spacecraft, and engine shafts. It can endure harsh temperature and pressure conditions thanks to its excellent purity and high-temperature resistance, which guarantees steady equipment operation.
    6511419c2763338526
    02
    Electronic Technology
    Used for conductive probes of high-end sensors, vacuum coating electrodes, cathode rods of electron tubes, and electrode rods of semiconductor production equipment. Electronic equipment's accuracy, stability, and service life are enhanced by its ultra-high purity and lack of impurities.
    6511419c2763338526
    03
    Metallurgy and Chemical Engineering
    It can be used as heating rods in high-temperature furnaces, corrosion-resistant reaction kettle shafts, electrode rods in smelting equipment, and support rods in chemical pipelines. By adapting to harsh conditions like high-temperature smelting and strong corrosion reactions, it lowers equipment loss and enhances operation safety.
    6511419c2763338526
    04
    National Defense and Military Industry
    Manufacture high-end armor-piercing projectile cores, armor protection enhancement rods, high-temperature components of missile engines, and precision shafts of military equipment. Relying on high strength, high hardness and high purity, it meets the high-performance combat requirements of military equipment.
    6511419c2763338526
    05
    New Energy
    Hydrogen fuel cell conductive rods, solar thermal power generating equipment's high-temperature resistant support rods, and wind power equipment's wear-resistant shafts. Its conductivity, fatigue resistance, and corrosion resistance increase equipment life and energy conversion efficiency.
    6511419c2763338526
    06
    Precision Machinery and Medical
    Used for wear-resistant mold insert rods, medical radiation protection support rods, dental equipment rods, and precision shafts of high-end machine tools. Accurate construction, durability, and product use safety are guaranteed by high purity and dependability.
    6511419c2763338526

    Send Inquiry

    As a professional metal rod solution provider, Baoji Yunjie focuses on the R&D and supply of high-quality pure tungsten rods (W1 model) and a full range of metal rods, plates, strips and foils such as titanium, zirconium, nickel, aluminum, tantalum and cobalt. It supports customized processing on demand and strictly controls quality throughout the process. If you have procurement needs or technical consulting for W1 model pure tungsten rods, please feel free to contact us, and we will work together to create new value for high-end manufacturing!