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Molybdenum Coil
Available Configurations
Properties common to all products in this list
| Thickness | Coil Width | Length | Temper ⓘ |
|---|---|---|---|
| 0.008 mm to 0.1 mm | 0.7 mm to 229 mm | 0.2 m to 150 m | Annealed As Rolled |
Need custom configurations? Please contact us.
Key Features
Molybdenum Coil at 99.9% purity is a pure refractory metal in a continuous rolled format, delivering molybdenum's well-characterized combination of high-temperature strength, low thermal expansion, and good thermal conductivity in a form suited to roll-to-roll processing, precision strip cutting, and the fabrication of formed components for demanding thermal and vacuum environments:
High Melting Point (2,617 °C) with Greater Room-Temperature Workability Than Tungsten
With a melting point of 2,617 °C, Molybdenum Coil is significantly more workable at room temperature than tungsten coil while sharing molybdenum's characteristic resistance to deformation and creep at elevated temperatures — making it the practical choice for formed and wound refractory components where tungsten's room-temperature brittleness in sheet form would complicate fabrication.
Thermal Conductivity of 138 W/m·K & Low CTE (5.1 × 10⁻⁶ K⁻¹)
A thermal conductivity of 138 W/m·K supports efficient heat distribution in furnace heating elements and vacuum heat shields, while a coefficient of thermal expansion of just 5.1 × 10⁻⁶ K⁻¹ ensures that formed components maintain dimensional accuracy through sustained thermal cycling — a property critical in precision vacuum system components and electronic packaging substrates.
Tensile Strength 485–690 MPa & Lower Mass Than Tungsten (10.22 g/cm³)
With tensile strength of 485–690 MPa depending on condition and a density of 10.22 g/cm³ — roughly half the weight of tungsten at comparable thickness — Molybdenum Coil provides the mechanical performance of a refractory metal strip in applications where both thermal management and mass optimization are design constraints.
Continuous Coil Format for Consistent Strip Geometry & Roll-to-Roll Processing
The coil format provides consistent geometry and uninterrupted length for the manufacture of furnace heating elements, vacuum heat shields, thermal barrier strips, and sputtering target blanks — without the dimensional variation that can arise from handling cut sheet and with the feed compatibility required for automated strip processing operations.
Traceable Purity for Research & Advanced Manufacturing
At 99.9% purity, Molybdenum Coil provides the material consistency required for thin-film deposition equipment, high-temperature reactor linings, electronic packaging substrates, and prototype thermal management component fabrication in research and advanced manufacturing environments where a specification-controlled refractory metal strip is an experimental or process requirement.
Industrial Applications
Molybdenum Coil is used across vacuum furnace manufacturing, thin-film deposition, electronic packaging, high-temperature processing, and research wherever a workable, lower-density refractory metal strip is required in continuous coil form:
- ✦ Furnace Heating Elements & Vacuum Heat Shields
- Used in the fabrication of furnace heating elements and vacuum heat shields, where a melting point of 2,617 °C, thermal conductivity of 138 W/m·K, and a low CTE of 5.1 × 10⁻⁶ K⁻¹ ensure structural integrity and dimensional stability under sustained high-temperature operation — and the coil format provides consistent strip width and thickness across the full heating element length.
- ✦ Sputtering Target Blanks & Thin-Film Deposition Equipment
- Supplied as sputtering target blanks and strip stock for thin-film deposition equipment, where 99.9% purity and consistent geometry across the coil length ensure reproducible deposition behavior and film composition, and where molybdenum's refractory properties support target performance under the high-power plasma conditions of production sputtering systems.
- ✦ Electronic Packaging Substrates & Thermal Barrier Strips
- Used as electronic packaging substrates and thermal barrier strip material, where a CTE of 5.1 × 10⁻⁶ K⁻¹ — close to that of silicon and technical ceramics — reduces thermomechanical stress at bonded interfaces and ensures that molybdenum strip maintains reliable thermal contact through the temperature cycling of power electronics service conditions.
- ✦ High-Temperature Reactor Linings
- Applied as liner strip material in high-temperature reactor and process chamber walls, where the combination of a 2,617 °C melting point, corrosion resistance in many high-temperature process environments, and the coil format's dimensional consistency support long-service-life reactor linings fabricated without the handling variation of cut sheet stock.
- ✦ Prototype Thermal Management Components & Research Applications
- Used in the fabrication of prototype thermal management components and as a specification-controlled refractory metal strip for research in thin-film nucleation, high-temperature material behavior, and refractory metal surface science — where traceable purity and consistent strip geometry across the full coil length are experimental requirements.
Material Properties
| Element | Value |
|---|---|
| Atomic number | 42 |
| Crystal structure | Body centred cubic |
| Electronic structure | Kr 4d⁵ 5s¹ |
| Valences shown | 2, 3, 4, 5, 6 |
| Atomic weight( amu ) | 95.94 |
| Thermal neutron absorption cross-section( Barns ) | 2.65 |
| Photo-electric work function( eV ) | 4.2 |
| Natural isotope distribution( Mass No./% ) | 95/ 15.9 |
| Natural isotope distribution( Mass No./% ) | 96/ 16.7 |
| Natural isotope distribution( Mass No./% ) | 98/ 24.1 |
| Natural isotope distribution( Mass No./% ) | 97/ 9.6 |
| Natural isotope distribution( Mass No./% ) | 92/ 14.8 |
| Natural isotope distribution( Mass No./% ) | 94/ 9.3 |
| Natural isotope distribution( Mass No./% ) | 100/ 9.6 |
| Atomic radius - Goldschmidt( nm ) | 0.14 |
| Ionisation potential( No./eV ) | 2/ 16.15 |
| Ionisation potential( No./eV ) | 5/ 61.2 |
| Ionisation potential( No./eV ) | 68 |
| Ionisation potential( No./eV ) | 1/ 7.10 |
| Ionisation potential( No./eV ) | 3/ 27.2 |
| Ionisation potential( No./eV ) | 4/ 46.4 |
| Element | Value |
|---|---|
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio | 0.293 |
| Poisson's ratio | 0.293 |
| Bulk modulus( GPa ) | 261.2 |
| Bulk modulus( GPa ) | 261.2 |
| Tensile modulus( GPa ) | 324.8 |
| Tensile modulus( GPa ) | 324.8 |
| Hardness - Vickers( kgf mm⁻² ) | 250 |
| Hardness - Vickers( kgf mm⁻² ) | 200 |
| Tensile strength( MPa ) | 485-550 |
| Tensile strength( MPa ) | 620-690 |
| Yield strength( MPa ) | 550 |
| Yield strength( MPa ) | 415-450 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 5.7@20°C |
| Superconductivity critical temperature( K ) | 0.915 |
| Temperature coefficient( K⁻¹ ) | 0.00435@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 1.45 |
| Element | Value |
|---|---|
| Boiling point( C ) | 4612 |
| Density( gcm⁻³ ) | 10.22@20°C |
| Element | Value |
|---|---|
| Melting point( C ) | 2617 |
| Latent heat of evaporation( J g⁻¹ ) | 6153 |
| Latent heat of fusion( J g⁻¹ ) | 290 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 251@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 138@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 5.1@0-100°C |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Coil Width | <100mm | ±1mm |
| Coil Width | >=100mm | +2% / -1% |
| Length | +10% / -0% |