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Tungsten and Molybdenum Wire

Tungsten

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Product Brief  

tungsten_tmb

Toshiba has nearly a hundred year history of producing Tungsten and Molybdenum products, contributing to society by delivering tungsten light bulbs and also by introducing remarkable inventions such as frosted bulbs and double coiled filaments.

Today, we offer thin wires and various other products to meet a wide range of customer requirements. From smelting to final shaping, these devices are produced in our own facilities, or those of our group companies, to supply both the Japanese market and the global market.

Please feel free to contact us to discuss your application and to receive detailed information on the product of interest. For further information please contact the Advanced Materials Division of Toshiba America Electronic Components, Inc. For other product details,  please visit our affiliate Toshiba Materials Co., Ltd.

Three Basic Materials

We have three basic materials for Toshiba tungsten rods and wires. They are doped tungsten, thoriated tungsten, and rhenium-alloyed tungsten. Their many variations meet a broad range of customer uses as shown in the table below.

Toshiba also has three materials for molybdenum wires and rods, pure molybdenum (M10), cobalt and tin alloyed molybdenum (M20) and doped molybdenum (M40). Customer uses are shown in the table below.

TUNGSTEN WIRE AND RODS
Classification Type Characteristics Applications
Thoriated Tungsten W51 0.7% ThO2-W A cobalt doped tungsten wire with uniform dispersion of thoria particles that enhance strength at an elevated temperature. Vibration resistant bulb filaments for low power small lamps.
W53 1.0% ThO2-W Standard thoriated tungsten wire for electron tubes. Transmitting tubes and magnetrons
W54 1.7% ThO2-W Standard thoriated tungsten wire for electron tubes. Transmitting tubes and magnetrons
W56 2.0% ThO2-W Thoriated tungsten wire for discharging electrodes. TIG welding electrodes and various discharging electrodes.
Rhenium Tungsten H30 3% Re-W Excels in high temperature strength with improved ductility after recrystallization. Heaters for electron tubes, cathode heaters for CRTs and filaments for vibration resisant lamps.
H36 26% Re-W Rhenium alloyed wire with much higher electric resistivity and higher strength. Filaments with high electric resistivity for various electron tubes. Probe pins for semiconductor inspection.
H37 3% Re-W Ultra fine wire with sufficient strength. Probe pins for semiconductor inspection.
H38 5% Re-W 5% rhenium doped tungsten alloy wire. Thermocouple (+) lead.
H39 26% Re-W 26% rhenium doped tungsten alloy wire. Thermocouple ( - ) lead.
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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.