Products Description
Molybdenum cup (also known as molybdenum crucible) is a high-temperature container made of high-purity molybdenum or molybdenum alloy, mainly used for melting, sintering or carrying high melting point materials.
Also we can offer different material cups including molybdenum, zirconium, tantalum, niobium, titanium, cobalt material.
Cup Forms include cambered cups, conical cups, convex spherical cup , trapezoid cup, etc.
Cup can be offered with different sizes.
Type and Size (Popular size)
|
OD (mm) |
Wall thickness (mm) |
Hight (mm) |
Pocessing technic |
|
5 mm - 30 mm |
0.09 mm - 0.3 mm |
> 4 mm |
stamping cup |
|
30 mm - 450 mm |
2 mm - 30 mm |
10 mm - 1300 mm |
machined |
Size of Cups &Disc according to your requirement.
Features
✅ High melting point: The melting point of molybdenum is as high as 2620℃, and it can be used for a long time at 1800~2000℃ (protective atmosphere is required).
✅ Corrosion resistance: It has good corrosion resistance to molten metals (such as copper, aluminum, silver), glass, rare earth, etc.
✅ High thermal conductivity: Heating is uniform, suitable for high-temperature smelting and crystal growth.
✅ High purity: ≥99.95% Mo, reducing the risk of contamination (suitable for semiconductor and photovoltaic industries).
⚠️ Disadvantages:
Low temperature brittleness: It is brittle at room temperature and mechanical shock should be avoided.
Easy to oxidize: MoO₃ (volatile) will be generated when encountering oxygen at high temperature, and it needs to be used in vacuum/inert atmosphere.
Applications
(1) Crystal Growth
Sapphire (Al₂O₃) crystal growth: used for LED substrates and optical window materials.
Rare earth crystals: such as YAG (yttrium aluminum garnet) and GGG (gadolinium gallium garnet).
Silicon single crystals: some photovoltaic and semiconductor processes.
(2) High-temperature smelting (Melting & Casting)
Rare metal smelting: such as titanium (Ti), zirconium (Zr), tantalum (Ta), etc.
Precious metal purification: gold (Au), silver (Ag), platinum (Pt), etc.
(3) Vacuum coating (Evaporation Coating)
As an evaporation source, it is used for PVD (physical vapor deposition) to coat aluminum, copper and other metal films.
(4) Powder Metallurgy
High-temperature sintering of refractory metals such as tungsten (W), molybdenum (Mo), and tungsten carbide (WC).
(5) Semiconductor & Photovoltaic Industry
Wafer high temperature annealing and diffusion process support.
Common Types of Molybdenum Crucibles
| Type | Features | Suitable Applications |
| Pure Molybdenum Crucible | Mo≥99.95%, lower cost | General melting, coating, sintering |
| TZM Molybdenum Crucible | Contains Ti, Zr, better creep resistance | Ultra-high temperature (>2000℃) crystal growth |
| Coated Crucible | Surface coated with SiC/Al₂O₃, pollution-resistant | High-purity semiconductors, optical crystal growth |
| Special-shaped Crucible | Custom shapes (with lids, threaded mouths, etc.) | Special process requirements |
FAQ
What is the maximum operating temperature of the molybdenum crucible?
✅ Short-term use: up to 2000℃ (vacuum or inert gas protection is required).
✅ Long-term use: recommended ≤1800℃ (high temperature will accelerate oxidation and creep).
How to choose molybdenum crucible vs tungsten crucible
| Feature | Molybdenum Crucible | Tungsten Crucible |
| Melting Point | 2620℃ | 3422℃ |
| Cost | Moderate (about 1/3 the cost of tungsten) | High |
| Suitable Temperature | <2000℃ | >2000℃ ultra-high temperature environments |
| Machining Difficulty | Machinable, can be turned and welded | Extremely difficult to process (requires powder metallurgy forming) |
Are you a factory ?
Yes, we are a factory but generally we use our trading company to handle the business abroad. It will be convenient to receive the remittance and arrange the shipment.
What is the MOQ of Molybdenum cup.
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: generally, we use carton case or plywood case and with protective material inside to make sure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
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