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Molybdenum Disk
Molybdenum discs are used in different applications. Molybdenum Alloy Discs are made from different grades of molybdenum alloys. The molybdenum alloys are corrosion resistant than ordinary stainless steels. There are many chromium molybdenum alloys that are used to produce the ASTM B386 Mu0079 Material, ASTM B386 Type 361 Circle, Molybdenum Discs. Pearl Overseas is a supplier of different types and varieties of molybdenum discs. The usage of the molybdenum discs are seen in silicon controlled rectifier diodes, heat sink bases and in semiconductor heat dissipation purposes. The Molybdenum Square Discs are the mostly used ones in these applications. There are round discs as well. There are different grades of molybdenum alloys that are used in the production of molybdenum discs.
Standard Size And Specification:
| Product | Molybdenum Disc | Molybdenum Square |
|---|---|---|
| Standard | ASTM B386, type 361/364 | ASTM B386, type 361/364 |
| Material | Mo≥99.95%, TZM Alloy | Mo≥99.95%, TZM Alloy |
| Molybdenum Discs Size | 5~100mm diameter x 0.2~12mm thickness | 25-100mm2 x 0.5~12.0 thickness |
| Molybdenum Square Size | 25~100mm Width/Length | 0.5~1.5mm Thickness |
| ASTM B386 squares density | 9.8 ~ 10.2g/cc | |
| Surface | Chemically cleaned, Grinding, As rolled | |
| Tensile Strength | 485-690 MPa | |
| Thermal Expansion (25 °C) | 4.8 µm-m-1-K-1 | |
| Electrical Resistivity | 0.25 kJ/kg K | |
| Purity | Mo>99.95% for pure Mo | |
| Roughness | Ra 0.8 | |
| ASTM Standard | ASTM B386 ASME SB386 |
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| Applications |
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| Flatness Tolerance | <4um | |
| Type of Molybdenum Discs |
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Chemical Composition:
| Element | Mo-1 | Mo-2 |
|---|---|---|
| Fe | 0.005 | 0.02 |
| Ni | 0.002 | 0.005 |
| Al | 0.002 | 0.005 |
| Si | 0.002 | 0.01 |
| Ca | 0.002 | 0.005 |
| Mg | 0.001 | 0.003 |
| P | 0.001 | 0.002 |
| C | 0.006 | 0.01 |
| O | 0.006 | 0.08 |
| N | 0.003 | – |
| Pb | – | 0.001 |
| Bi | – | 0.001 |
| Sn | – | 0.001 |
| Sb | – | 0.001 |
| Cd | – | 0.001 |
Physical Properties:
| Property | Value |
|---|---|
| Molecular Weight | 95.94 |
| Appearance | Silvery |
| Melting Point | 2623 °C |
| Boiling Point | 4639 °C |
| Density | 10.28 g/cm³ |
| Solubility in H2O | N/A |
| Electrical Resistivity | 0.25 kJ/kg K |
| Electronegativity | 1.9 Paulings |
| Heat of Fusion | 37.8 kJ/mol |
| Heat of Vaporization | 598 kJ/mol |
| Poisson’s Ratio | 0.31 |
| Specific Heat | 0.25 kJ/kg K |
| Tensile Strength | 485-690 MPa |
| Thermal Conductivity | 138 W/m K |
| Thermal Expansion (25 °C) | 4.8 µm-m-1-K-1 |
| Vickers Hardness | 1530 MPa |
| Young’s Modulus | 329 GPa |
Mechanical Behaviour:
| THICKNESS (inch) | DIAMETER (inch) |
|---|---|
| 0.1-0.3 | 0.004-0.012 |
| 0.31-0.5 | 0.012-0.020 |
| 0.51-1.0 | 0.020-0.040 |
| 1.1-2.0 | 0.040-0.080 |
| 2.1-3.0 | 0.080-0.120 |
| 3.1-4.0 | 0.120-0.160 |
| 4.1-6.0 | 0.160-0.240 |
Grade:
| Grade | Mo-1 | Mo-2 | Mo-3 |
|---|---|---|---|
| Mo(%)≥ | 99.95 | 99.95 | 99.92 |
| Pb | – | – | 0.001 |
| Bi | – | – | 0.001 |
| Sn | – | – | 0.001 |
| Sd | – | – | 0.001 |
| Cd | – | – | 0.001 |
| Fe | 0.005 | 0.006 | 0.030 |
| Ni | 0.002 | 0.001 | 0.005 |
| Al | 0.002 | 0.002 | 0.005 |
| Si | 0.003 | 0.001 | 0.010 |
| Ca | 0.002 | 0.002 | 0.004 |
| Mg | 0.001 | 0.001 | 0.003 |
| P | 0.001 | 0.001 | 0.002 |
| C | 0.005 | 0.003 | 0.010 |
| O | 0.003 | 0.005 | 0.008 |
| N | 0.001 | 0.001 | – |
Temperature Limit:
| Property | Value |
|---|---|
| Temperature | 500°C to 700°C |
Size:
| Mo Disc | Mo Square | |
|---|---|---|
| Diameter | 0.2″ – 5.9″ +/-.0001″ | 0.08″ – 4″ |
| Thickness | 0.008″ – 0.47″ | 0.004″ – 0.12″ |
| Surface Roughness | Ra<0.06 mm | Ra<0.06 mm |
| Flatness/Parallelis | <0.01 mm | – |
| Coating (PVD or EP) | Ru, Rh, Ni, Ag, Au, etc. | Ru, Rh, Ni, Ag, Au, etc. |
Feature:
- Molybdenum Discs from Achemetal is under vacuum annealing and leveling before delivery
- Surface of Molybdenum Discs and plate has metallic silver luster
- Molybdenum Discs adopts the material Molybdenum with a high purity of 99.9%
- Its radiation shielding effect is equivalent to that of lead plate
- Our Molybdenum Discs and plate can be as thin as 0.1mm
Stock of Molybdenum Round Disc:
Ready stock of Molybdenum Round Disc, Moly Alloy 364 Squares, Tzm Alloy Disc as per Mola Alloy Disc, Mo-la Alloy Disc in Round & Square.
| Molybdenum Disc | Molybdenum Alloy Discs |
| Molybdenum Round Disc | Molybdenum Discs |
| Round Molybdenum Disc | Mu0082 Molybdenum Disc |
| Mo Square | Thin Molybdenum Metal Discs |
| Molybdenum Square Discs | ASME SB386 Molybdenum Foil |
| Tzm Alloy Disc | Pure Polished Molybdenum Disc |
| Mola Alloy Disc | Moly Disc |
| Mo Alloy Discs | Molybdenum Mesh Disc |
| Mo-la Alloy | Mo Disc |
| TZM Mo1 Sheet | TZM Mo2 Coils |
Applications of Molybdenum Discs:
We supply various types of Molybdenum Mesh Disc like Mo Alloy Discs, Molybdenum Square Discs per Molybdenum Discs.
- Thyristors (GTO’s)
- Silicon Controlled Rectifiers Diodes
- Heat Sink Bases in ICs, LSIs and Hybrid Circuits
- Used for contact materials in silicon controlled rectifiers diodes, transistors, and thyristors (GTO’s).
- Transistors
- Used as heat sink bases in ICs, LSIs and hybrid circuits.
- Used as an electronic component of high power and high-reliability semiconductor for heat dissipation.
