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    Tungsten Rod
  • Description of Tungsten Rod:

    Purity: W>99.95% (99.98% can also be achieved if special demanded)
    Density: >18.3g/cm3
    Surface: sintering surface, forged surface, ground surface, polished surface
    Tungsten rod features high hardness, low mechanical abrasion with smooth surface. Moreover, it is characterized by high temperature resistance and high creep resistance.

    Application of Tungsten Rod:

    Tungsten bars are mainly used for cathode radiation rods and high temperature forming tungsten rods, which can be used as the auxiliary wire, leading-in wire, printer needle and various quartz heating furnaces.

    Surface condition of Tungsten Rod:

    Black Surface – Surface is “as swaged” or “as drawn”; retaining a coating of processing lubricants and oxides.
    Cleaned Surface – Surface is chemically cleaned to remove all lubricants and oxides.
    Ground Surface – Surface is center-less ground to remove all coating and to achieve precise diameter control.

    Specification of Tungsten Rod:

    Type Diameter (mm) Diameter tolerance Length (mm) Length tolerance Liner rate
    Sintering Rod 40-100 ±3 <500 ±5 ±5%
    Forged Rod 20-80 ±2 <800 ±5 ±2%
    Ground Rod 2-60 ±0.1 <650 ±1 ±0.5%

    Chemical components for different purity Tungsten bars:

    W (>%) Chemical Content (< %)
    99.999

    Fe

    Ca

    Be

    Sn

    Al

    Ni

    Zn

    Sb

    Pt

    K

    Ta

    Na

    0.0001

    0.00005

    0.000005

    0.000005

    0.00005

    0.00001

    0.00005

    0.00005

    0.00003

    0.000005

    0.0001

    0.00005

    Cr

    Pb

    As

    Mg

    Ti

    Bi

    Mo

    Cd

    Cu

    Ba

    Co

    Mn

    0.000005

    0.00001

    0.00005

    0.00005

    0.000005

    0.00001

    0.00001

    0.000005

    0.000007

    0.00001

    0.000005

    0.000005

    99.99

    Fe

    Ca

    Be

    Sn

    Al

    Ni

    Zn

    Sb

    Pt

    K

    O

    Na

    0.0001

    0.00045

    0.0001

    0.0001

    0.0001

    0.0001

    0.0001

    0.0001

    0.0001

    0.0005

    0.0040

    0.0009

    Cr

    Pb

    As

    Mg

    Ti

    Bi

    Mo

    Cd

    Cu

    Ba

    Co

    Mn

    0.0001

    0.0001

    0.0001

    0.0001

    0.0001

    0.0001

    0.0002

    0.0001

    0.0001

    0.0001

    0.0001

    0.0001

    99.95

    Fe

    Ca

    P

    Sn

    Al

    Ni

    N

    Sb

    Si

    O

    Pb

    As

    0.005

    0.003

    0.001

    0.0001

    0.002

    0.003

    0.003

    0.001

    0.003

    0.003

    0.0001

    0.002

    Mg

    C

    Bi

    Mo

     

     

     

     

     

     

     

     

    0.002

    0.005

    0.0001

    0.001

     

     

     

     

     

     

     

    Packaging of Tungsten Bar:

    Our tungsten rods are clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.

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