Rhenium-tungsten Wires (Rheni-tung®)

Outline

Rhenium tungsten wires have greater electric resistance than pure tungsten wires. In addition, they have unique mechanical properties. These electric and mechanical properties vary according to the rhenium content. Toshiba Materials offers every kind of rhenium tungsten material to meet customers' requests.

Advantages

H30:

H30 Rheni-tung wires are made of 3wt% rhenium-doped tungsten alloy. They have excellent non-sagging properties. Unlike doped tungsten wires, they have no tendency to drop abruptly in strength after secondary re-crystallization.
They also have high ductility, which doped tungsten wires do not have.

Changes in tensile strength after heat treatment

H35 and H36

The rhenium content is augmented in H35 and H36 rheni-tung wires so that they have higher electric resistance and tensile strength.

Applications

Heater filaments of various electric tubes and filaments of small lamps that are required to have higher vibration resistance

FAQ

FAQ on tungsten and molybdenum

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