Mo
Molybdenum (Mo)
Mo 99.95%+
A versatile refractory metal combining high-temperature strength with excellent thermal conductivity and low thermal expansion for precision applications.
Material Properties
Molybdenum offers an excellent combination of high-temperature strength, thermal conductivity, and dimensional stability. Its lower density compared to tungsten makes it ideal for applications where weight is a consideration.
Melting Point2623°C (4753°F)
Density10.2 g/cm³
Thermal Conductivity138 W/mK
Electrical Resistivity5.7 μΩ·cm
Tensile Strength500-700 MPa
Coefficient of Thermal Expansion4.8 x 10⁻⁶ /K
Applications
- High-temperature furnace components
- Glass melting electrodes
- Semiconductor heat sinks
- Sputtering targets for thin films
- X-ray tube anodes
- Lighting and electronic components
- Die casting dies and cores
- Aerospace structural components
- Nuclear reactor components
- EDM electrodes
Available Grades
Pure Molybdenum
99.95%+ purity for general high-temperature applications and glass processing.
Mo-La (MoLa)
Lanthanum oxide dispersion strengthened molybdenum with improved creep resistance.
Mo-Y (MoY)
Yttrium oxide dispersion strengthened for superior high-temperature properties.
Available Forms
Rods & Bars
Plates & Sheets
Wire
Tubes
Crucibles
Boats & Trays
Sputtering Targets
Custom Parts
Technical Notes
- Molybdenum has a ductile-to-brittle transition temperature (DBTT) typically around -20°C to +40°C, depending on processing history.
- Oxidation resistance is limited above 500°C in air. Use protective atmospheres (hydrogen, inert gas) or vacuum at elevated temperatures.
- Better machinability than tungsten. Can be machined with carbide tools when properly supported.
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