
Pure Molybdenum Disc
2. Catalog: Molybdenum product
3. Material: Pure molybdenum
4. Purity: Mo≥99.95%
5. Grade: Mo-1
6. Density: 10.2g/cm3
7. Shape: Round, Disc, Circle, Customization
8. Form: Sheet, Plate, Rod, Block
9. Processing method: Sintering, Rolling, Forging, Annealed, Machining
10. Surface: Polished, Ground finished, Grinding, Rolling, Alkaline washing, Black.
11. Application: Mainly used for making high temperature components(heat shield screen, heating elements, cover plate), Sputtering target ect.
12. Standard: ASTM B386
The Pure Molybdenum Disc is a precision-machined metal component made from high-purity molybdenum, commonly used in semiconductor processing, vacuum systems, and high-temperature industrial applications.
product Specification
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Pure Molybdenum Disc Specification |
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Product Name |
Thickness (mm) |
Diameter (mm) |
Flatness Tolerance |
Roughness |
Surface Condition |
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High purity molybdenum disc |
≥0.08mm |
≤700 |
±0.01 mm |
Ra< 0.01 um |
Black, Alkali-washed surface, Ground finished, Polished, Cold Rolled |
Product Properties
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High Purity Molybdenum Disc Properties (Theoretical) |
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|
Molecular Weight |
95.94 |
|
Appearance |
Silvery |
|
Melting Point |
2623 °C |
|
Boiling Point |
4639 °C |
|
Density |
10.28 g/cm ³ |
|
Solubility in H2O |
N/A |
|
Poisson's Ratio |
0.31 |
|
Young's Modulus |
329 GPa |
|
Vickers Hardness |
1530 MPa |
|
Tensile Strength |
485-690 MPa |
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Thermal Conductivity |
138 W/m K |
|
Thermal Expansion |
(25 °C) 4.8 µm·m-1·K-1 |
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Electrical Resistivity |
0.25 kJ/kg K |
|
Electronegativity |
1.9 Paulings |
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Specific Heat |
0.25 kJ/kg K |
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Heat of Fusion |
37.8 kJ/mol |
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Heat of Vaporization |
598 kJ/mol |
Advantages
High‑Temperature Stability
Maintains strength and shape in extreme heat environments, suitable for vacuum and high‑temperature furnaces.
Low Thermal Expansion
Minimal dimensional change under heat improves precision and reduces thermal stress in assemblies.
Good Thermal & Electrical Conductivity
Efficient heat and electrical transfer supports applications in heating elements, electrodes, and thermal systems.
Precision Machinability
Well suited for grinding and machining to tight tolerances, meeting exact dimensional requirements.
Product Application
Electronics Industry
Used in semiconductor vacuum chambers and heating substrates to maintain device spacing and bonding accuracy.
Aerospace Industry
Used in high-temperature structural components and heat shields to prevent deformation under thermal load.
Chemical Equipment
Supports high-temperature reactors and heating elements; chemical inertness prevents corrosion and localized overheating.
Medical Equipment
Used in sterilizers and heating components to maintain temperature uniformity and protect sensitive samples or devices.

Product Storage and Usage Precautions
Storage
Store in a dry, clean environment away from moisture and corrosive chemicals.
Avoid direct contact with metal or other reactive surfaces to prevent oxidation and discoloration.
Usage Precautions
Inspect regularly, especially under high temperature, pressure, or corrosive conditions.
Avoid bending, shearing, stamping, or cutting at room temperature; heat treatment is recommended.
Handle carefully above 1000 °C, as brittleness increases and processing becomes difficult.
Select appropriate mechanical grinding methods based on specific application conditions.
Product Packing
● The product will be packaged in a standard export-grade three-layer plywood box or cardboard box.
● The box will be filled with shock-absorbing plastic foam.
● A desiccant will be placed inside the box.

Product Shipping
● International Express: DHL, FEDEX, UPS, TNT, EMS ect. can be chose.
● By Air cargo
● By sea
● By rail transportation
If the item is in stock, it can be shipped within 3 business days.
If the item is not in stock, it will be shipped within 7-15 business days, depending on the situation.
We have established long-term partnerships with multiple freight forwarders to meet all your transportation needs.

FAQ
What is your MOQ?
A: Standard MOQ is 1 kg for molybdenum bars. Exact MOQ depends on size and production requirements.
Can you provide samples? Are there charges?
A: Small in-stock samples can be free; freight is covered by the buyer. Larger or custom samples are charged, which can be deducted from a formal order.
Can you produce according to our design or drawings?
A: Yes, we offer customized production according to your dimensions or drawings (OEM/ODM available).
Are you a factory?
A: Yes, we are a factory specializing in molybdenum and tungsten products, offering one-stop service from production to delivery. We also cooperate with suppliers for other refractory metals like tantalum, zirconium, niobium, and titanium.
How do you control quality?
A: All products are made according to ISO9001 and ASTM standards. Each step-from powder selection to final inspection-is strictly monitored by our quality control team.
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