Home  /  Products  /  Molybdenum Crucible
Mo 99.95% · OD 60 – 500 mm · Custom to drawing

Molybdenum Crucible

Molybdenum crucibles with high melting and boiling points, high-temperature strength, wear and corrosion resistance, high thermal conductivity and low thermal expansion. Made by sintering, stamping or spin-forming as the core vessels in sapphire single-crystal growth, quartz-glass melting and rare-earth smelting furnaces. Outer diameters 60–500 mm — all sizes custom to your drawing.

Mo 99.95%OD 60 – 500 mmHeight ≤ 800 mmSintered / spun
Molybdenum Crucible
Gallery

Molybdenum Crucible photos

Click any photo to enlarge
Specifications

Sizes & technical data

Crucible dimensions

Outer diameter60 – 500 mm
Height50 – 800 mm
Wall thickness5 – 50 mm
Bottom thickness15 – 50 mm

Key parameters

Grade / PurityMo ≥ 99.95%
FormingSintered · stamped · spin-formed
SurfaceSilver-gray sintered / polished
StandardYS/T 796-2012
PropertiesHigh-temp strength · wear & corrosion resistance
SizeCustom to drawing
PackingMoisture-proof paper + foam + wooden case

Physical & chemical properties

Atomic number42
CAS number7439-98-7
Atomic mass95.94 g/mol
Melting point2620 °C
Boiling point4639 °C
Density (20 °C)10.22 g/cm³
Crystal structureBody-centered cubic
Thermal expansion (20 °C)5.2 × 10⁻⁶ m/(m·K)
Thermal conductivity (20 °C)142 W/(m·K)
Specific heat (20 °C)0.25 J/(g·K)
Electrical conductivity (20 °C)17.9 × 10⁶ S/m
Resistivity (20 °C)0.056 (Ω·mm²)/m
Production process

How it is made

01

Powder blending

Mo powder mixed and screened.

02

Isostatic press

Cold isostatic pressing into a blank.

03

Sintering

Medium-frequency sintering furnace.

04

Machining & polishing

Rough and finish machining, then polishing.

Applications

Where molybdenum crucible is used

01

Sapphire single-crystal growth

Core vessels for sapphire crystal growth furnaces.

02

Quartz-glass melting

Crucibles for quartz-glass melting furnaces.

03

Rare-earth smelting

Vessels for rare-earth smelting and metallurgy.

04

Vacuum coating & solar

Crucibles for vacuum coating, magnetic materials and silicon / solar.

Need a custom molybdenum crucible?

Send your OD, height, wall and bottom thickness — or a drawing. Quotes within one business day.