Molybdenum Spooled Wire

Industrial Applications

Molybdenum Spooled Wire is used across high-temperature furnace construction, vacuum equipment, semiconductor processing, and research wherever its melting point, low thermal expansion, and refractory character determine material selection:

✦ Heating Element Wire in Vacuum and Controlled-Atmosphere Furnaces

The primary application. Used as heating element wire in vacuum and controlled-atmosphere furnaces operating up to approximately 1,700 °C, where a 2,617 °C melting point, low vapor pressure, and creep resistance give it service life that most other refractory metals cannot match under these conditions.

✦ Mandrel Wire for Tungsten Coil Production

Annealed wire is used as mandrel wire in tungsten filament and coil production, where its dimensional stability at elevated temperature and compatibility with the subsequent etching or dissolution processes that remove the mandrel are both required.

✦ Support Structures in Vacuum Systems and Semiconductor Equipment

As-drawn and hard tempers are applied as support structures and frames in vacuum systems and semiconductor processing equipment, where low thermal expansion and high stiffness maintain dimensional precision at elevated process temperatures.

✦ TIG Welding Electrode Wire for Refractory Metal Joining

Used as TIG welding electrode wire for joining refractory metals, where the combination of high melting point, good electrical conductivity, and mechanical rigidity in the as-drawn or hard condition supports reliable arc welding of molybdenum, tungsten, and related alloys.

✦ Dimensional Reference Components and Glass-to-Metal Seal Elements

Applied as dimensional reference components and feedthrough elements in glass-to-metal seals, where the low coefficient of thermal expansion closely matched to certain ceramics and glasses minimizes thermally induced stress at the seal interface.

✦ Surface Science and High-Temperature Mechanical Testing

Used in research as a substrate for surface science investigations and as a model refractory metal in creep and high-temperature mechanical testing, where the wire’s well-characterized composition and the coil format provide a consistent experimental substrate.