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Molybdenum Crucible

Molybdenum Crucible

The molybdenum crucible is a container made from molybdenum, a refractory metal known for its high melting point, excellent strength, and corrosion resistance. Molybdenum crucibles are commonly used in high-temperature applications such as metal melting and casting, as well as in the production of certain high-performance materials.

Molybdenum crucibles are able to withstand extremely high temperatures, making them ideal for use in high-temperature furnaces and other industrial settings. They are often used to hold and melt metals such as aluminum, copper, and steel, as well as other materials such as ceramics and glasses.

Molybdenum crucibles are available in a variety of sizes and shapes, including cylindrical, rectangular, and conical. They can be made using different manufacturing processes such as sintering, pressing, and rolling, depending on the desired properties and application.

Molybdenum Crucibles Properties (Theoretical)

Molecular Weight 95.94
Appearance Silvery
Melting Point 2623 °C
Boiling Point 4639 °C
Density 10280 kg/m3
Solubility in H2O N/A
Electrical Resistivity 5.2 microhm-cm @ 0 °C
Electronegativity 1.9 Paulings
Heat of Fusion 6.6 Cal/gm mole
Heat of Vaporization 128 K-Cal/gm atom at 4612 °C
Poisson's Ratio 0.31
Specific Heat 0.0599 Cal/g/K @ 25 °C
Tensile Strength N/A
Thermal Conductivity 1.38 W/cm/K @ 298.2 K
Thermal Expansion (25 °C) 4.8 µm·m-1·K-1
Vickers Hardness 1530 MPa
Young's Modulus 329 GPa

Materials Molybdenum metal/TZM/MoLa Alloy
Purity 99.95%
Standard ASTM B387

Molybdenum Crucible and Lids Specifications

  • Size: 10-500mm OD x 10-600mm H, customized
  • Material: Mo, TZM, MoLa Alloy
  • Production Method: Sintering, forging, sintering, and machining.
  • Purity: 99.95%,  99.99%

Molybdenum Crucible Capacity

With our many years of experience in the field of powder metallurgy, we produce crucibles of a particularly high density and purity.  We can produce various molybdenum crucibles, such as round-mouth crucibles, taper crucibles, ellipse crucibles, and bottomless crucibles. It can be produced according to the customers’ drawings.




Diameter (mm)

High (mm)

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Sintering and Machining





Molybdenum Crucible Production Method

The molybdenum crucible is sintered or forged from the high-purity molybdenum powder.

  •   Hot pressing --> sintering --> tooling.    Density, 9.8-10.0g/cc
  •   Hot pressing --> sintering --> forging --> tooling.   Density up to10.2g/cc
  •   Sheets --> deep drawing --> tooling.

Molybdenum Crucible Application

The working temperature environment of the molybdenum crucible is generally above 2000℃. Molybdenum crucibles are widely used in sapphire single crystal growth furnaces, quartz glass smelting furnaces, rare earth smelting furnaces, and other industrial furnaces. Especially for sapphire single crystal growth furnaces, molybdenum crucibles with high purity, high density, no internal cracks, precise size, smooth inner and outer walls, etc., can control the success rate of seed crystals and the quality of pulling crystals during the growth of sapphire crystals. 


We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.

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