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    Tungsten Wire Tungsten Filament for Vacuum Coating

    Short Description:

    • Atomic number: 74
    • Atomic weight: 183.85
    • Density: 19.254 g/cm3
    • Melting point: 3410°C (+ 20°C)
    • Boiling point: 5900°C
    • Specific heat: 0.14 kJ/kg x K at 20°C
    • Latent heat of fusion: 209 kJ/kg (estimated)
    • Thermal conductivity: 129 W/m x K at 20°C
    • Heat of evaporation: 444 J/g
    • Resistivity: 5.5 μΩ/cm at 20°C
    • Resistivity temperature coefficient: 0.00482 Ω/ΩK
    • Superconductivity temperature: 0.016 K

  • CAS No.: 7440-33-7
  • Molecular Formula: W
  • Quality Standard: 99.95%, 99.92%
  • Minimum Order: Depends on your requirement
  • USD$0.00

    Out of Stock
    • Quality First

      Quality First

    • Competitive Price

      Competitive Price

    • First-class Production Line

      First-class Production Line

    • Factory Origin

      Factory Origin

    • Customized Services

      Customized Services

    Anhui Fitech

    Anhui Fitech Material Co.,Ltd  specializes in Nano alloy more than 3 years, with rich experience, high quality, and competitive price. As a professional manufacturer and supplier, we have our own professional technology team to meet any of your requirements in quality and technology. If you want to buy nano composites, metal nanoparticles, alloy nanoparticles, oxide nanoparticles, rare earth oxide nanoparticles, or look for price quotation, please contact info@fitechem.com

    Specification (% )

    Features

    The surface of the tungsten wire is coated with graphite milk, which is more uniform black, and the graphite milk is metallic luster when removed.

    Model

    W Content

    Impurity element content

    Total Content

    Content per element

    ZY-WAL1、ZY-WAL2

    ≥99.95%

    ≤0.05%

    ≤0.01%

    ZY-W1

    ≥99.95%

    ≤0.05%

    ≤0.01%

    ZY-W2

    ≥99.92%

    ≤0.08%

    ≤0.01%

    Note: Ka is not included as impurity content

    Specifications and common difference 

    Diameter

    (μm)

    Weight

    (mg/200mm)

    200mm

    Thread weight deviation

    (%)

    Diameter deviation (%)
    Grade 0 Grade Ⅰ Grade Ⅱ Grade Ⅰ Grade Ⅱ
    8<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

     

    钨丝
    钨丝2
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    Applications

    Application 

    - Manufacture electric light sources and electric vacuum parts

    - Used as high temperature heating element and high temperature structural parts

    - Used to make tungsten spirals for vacuum evaporation

    Exhibition Show

    pro_exhi

    Packing & Transportation

    transport
    transport2

    FAQs

    Q: Are you trading company or manufacturer ?
    A: We are factory.

    Q: How long is your delivery time?
    A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
    quantity.

    Q: Do you provide samples ? is it free or extra ?
    A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

    Q: What is your terms of payment ?
    A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

    Out of Stock

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