Molybdenum Disc


Molybdenum Disc & Square has a similar low coefficient of thermal expansion to with silicon, but better machining properties. Based on this reason, it is usually used for heat dissipation as electronic component of high power and high reliability semiconductor, contact materials in silicon controlled rectifiers diodes, transistors and thyristors (GTO), mounting material for power semiconductor, heat sink bases in IC, LSI and hybrid circuits.

Disc Part

We provide both coated (coating: Ru, Rh, Ni, Ag, Au etc.) molybdenum disc & un-coated disc and square.

Specification for our un-coated Moly Discs and Square

Product Molybdenum Disc Molybdenum Square
Standard ASTM B386, type 361/364 ASTM B386, type 361/364
Material Mo≥99.95%, TZM Alloy Mo≥99.95%, TZM Alloy
Size 5~100mm diameter x 0.2~12mm thickness 25~100mm2 x 0.5~12.0 thickness
Surface Chemically cleaned, Grinding, As rolled

Molybdenum Square

We can also provide TZM Alloy disc and Mo-La alloy disc. Price for pure molybdenum is lower than TZM alloy and Mo-La Alloy cause the machining and sintering process.

About Molybdenum

Molybdenum is used for its extremely high melting point and relative flexibility. Molybdenum has a melting point of 2,623 °C. Molybdenum has a high elastic modulus, and only tungsten and tantalum have higher melting points. Typical applications for Molybdenum are crucibles, evaporation boats, propulsion components, x-ray tube, lighting industry, glass melting electrodes, high temperature furnaces, sputtering targets, heat sinks, heating elements, electrodes, stirrers, orifice plates, support members, mandrels, shields, sintering trays, filaments, furnace windings, thermocouple sheathes, nose cones, nozzles, jet tabs, contacts, brazing fixtures, boring bars, tools, heat radiation shields, cathodes, and aircraft and missile parts and nuclear energy applications where high temperature resistance is crucial.

Packaging for our Moly disc and square

The standard package for moly, TZM alloy , Mo-La disc is wooden crate, so that goods can be protected during handling and transportation. Small discs and squares will be appropriated packing in carton.

Please send us your specification for molybdenum to

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