Thoriated Tungsten (Thori-tung®) Parts

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Thoriated Tungsten (Thori-tung®) Discharge Electrodes

Thoriated tungsten (Thori-tung®) has outstanding electron emission, making it well suited for electrodes used in lighting. Toshiba Materials uses this material to produce electrodes for the photolithography used in semiconductor pattern molding and for xenon lamps used for purposes such as digital cinema projectors.

Thoriated Tungsten Discharge Electrode photo

Features

  • Outstanding, stable electron emission
  • Resistant to deformation

Product specifications

  • Inquire for details

Examples of uses

  • Xenon lamps for digital cinema projectors

Thoriated Tungsten (Thori-tung®) Wires

Toshiba Materials produces thoriated tungsten (Thori-tung®) wires with excellent mechanical properties under high temperatures.

  • Thoriated tungsten (Thori-tung®) wires for earthquake-proof lightbulb filaments (W51)
    • Thoria (ThO2) is finely distributed through tungsten, producing wires with outstanding strength and electron emission in high temperatures.
  • Thoriated tungsten (Thori-tung®) wires for electron tubes (W53 and W54)
    • A long recrystallization process is carried out using a suitable heat treatment, producing wires with outstanding strength in high temperatures.
Thoriated Tungsten Wires photo

Features

  • Outstanding strength in high temperatures
  • Outstanding electron emission

Product specifications

Material

Material : Thoriated Tungsten (Thori-tung®) Wires
ThO2
(wt%)
Fe
(ppm)
Mo
(ppm)
Co
(ppm)
W*
(wt%)
Features
W51 0.7 ≤ 30 ≤ 50 100~200 ≥ 99.95 Outstanding non-sag properties and resistance to vibration
W53 1.0 ≤ 30 ≤ 50 - ≥ 99.95 Outstanding electron emission and resistance to deformation under high temperatures
W54 1.7 ≤ 30 ≤ 50 - ≥ 99.95 Outstanding electron emission and resistance to deformation under high temperatures
W56 2.0 ≤ 30 ≤ 50 - ≥ 99.95 Outstanding electron emission and minimal wear to electrodes

*: Purity of tungsten excluding thoria

  • Sizes: Inquire for details

Examples of uses

  • Earthquake-proof lightbulb filaments
  • Electron tubes

Thoriated Tungsten (Thori-tung®) Electrodes

Thoriated Tungsten (Thori-tung®)'s outstanding electron emission means that when it is used as an electrode, it generates arcs easily and maintains a low electrode temperature during operation. This prevents the welding rod from melting onto the base metal, minimizing defects in welding and wear to the electrode. Toshiba Materials makes use of these qualities to produce TIG welding electrodes and discharge electrodes.

Thoriated Tungsten Electrodes photo

Features

  • Enables TIG welding with minimal defects
  • Minimal wear to electrode

Product specifications

Material (TIG welding electrodes)

Material (TIG welding electrodes)
ThO2
(wt%)
Fe
(ppm)
Mo
(ppm)
W*
(wt%)
Features
W56 2.0 ≤ 50 ≤ 50 ≥ 99.95 Outstanding electron emission and minimal wear to electrodes

*: Purity of tungsten excluding thoria

Material (discharge electrodes)

Material (discharge electrodes)
ThO2
(wt%)
Fe
(ppm)
Mo
(ppm)
W*
(wt%)
Features
W5X 0.5 ≤ 50 ≤ 50 ≥ 99.95 Outstanding electron emission and resistance to deformation under high temperatures
W53 1.0 ≤ 50 ≤ 50 ≥ 99.95 Outstanding electron emission and resistance to deformation under high temperatures
W54 1.7 ≤ 50 ≤ 50 ≥ 99.95 Outstanding electron emission and resistance to deformation under high temperatures
W56 2.0 ≤ 50 ≤ 50 ≥ 99.95 Outstanding electron emission and minimal wear to electrodes

*: Purity of tungsten excluding thoria

  • Sizes: Inquire for details

Examples of uses

  • TIG welding electrodes
  • Discharge electrodes

If you have any inquiries, please contact us.

Open 9:00am-5:00pm (business days)

Contact Us

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