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Formula: W
Form: Wire
Material: Tungsten
CAS Number: 7440-33-7
Commodity: Metals
Purity:
99.95%
Coating:
Gold Plated
Gold Plated Tungsten Spooled Wire is designed for high-temperature, high-frequency, and high-reliability electronic applications. Featuring a tungsten core with a melting point of around 3422°C, it is ideal for use in semiconductor interconnects, precision resistive sensors, and microwave components. The gold plating maintains surface conductivity and prevents oxidation, preserving performance over prolonged use. This wire is widely used in aerospace and defense systems where stability under extreme conditions is crucial, as well as in medical devices like implantable electrodes due to its biocompatibility. It is also highly useful in a laboratory setting, particularly for advanced research and development in fields such as telecommunications and biomedical engineering.
Tolerances
Wire
| Diameter | ±10% | |
|---|---|---|
| Length | +5% / -1% |
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 74 |
| Crystal structure | Body centred cubic |
| Electronic structure | Xe 4f¹⁴ 5d⁴ 6s² |
| Valences shown | 2,3,4,5,6 |
| Atomic weight( amu ) | 183.85 |
| Thermal neutron absorption cross-section( Barns ) | 18.5 |
| Photo-electric work function( eV ) | 4.55 |
| Natural isotope distribution( Mass No./% ) | 183/ 14.3 |
| Natural isotope distribution( Mass No./% ) | 182/ 26.3 |
| Natural isotope distribution( Mass No./% ) | 186/ 28.6 |
| Natural isotope distribution( Mass No./% ) | 180/ 0.1 |
| Natural isotope distribution( Mass No./% ) | 184/ 30.7 |
| Atomic radius - Goldschmidt( nm ) | 0.141 |
| Ionisation potential( No./eV ) | 1/ 7.98 |
| Ionisation potential( No./eV ) | 2/ 17.7 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Soft |
| Material condition | Hard |
| Poisson's ratio | 0.28 |
| Poisson's ratio | 0.28 |
| Bulk modulus( GPa ) | 311 |
| Bulk modulus( GPa ) | 311 |
| Tensile modulus( GPa ) | 411 |
| Tensile modulus( GPa ) | 411 |
| Hardness - Vickers( kgf mm⁻² ) | 360 |
| Hardness - Vickers( kgf mm⁻² ) | 500 |
| Tensile strength( MPa ) | 550-620 |
| Tensile strength( MPa ) | 1920 |
| Yield strength( MPa ) | 550 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 5.4@20@20°C |
| Superconductivity critical temperature( K ) | 0.0154 |
| Temperature coefficient( K⁻¹ ) | 0.0048@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 1.12 |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 5660 |
| Density( gcm⁻³ ) | 19.3@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 3410 |
| Latent heat of evaporation( J g⁻¹ ) | 4009 |
| Latent heat of fusion( J g⁻¹ ) | 192 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 133@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 173@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 4.5@0-100°C |
Other Customers Purchased
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Zirconium Spooled Wire Formula: Zr
Percentage Purity: 99.2%
Product Shape: Spooled
Diameter: 0.28mm
Length: 10m
Temper: Annealed
Type: Hafnium > 0.2%
CAS Number: 7440-67-7
UOM Code: 007-857-52
eachStarting at $234.48
Discounts applied for volume purchases -
Tungsten Foil Formula: W
Percentage Purity: 99.95%
Thickness: 5mm
Length 1: 60mm
Length 2: 65mm
CAS Number: 7440-33-7
UOM Code: 011-242-88
eachStarting at $164.57
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Zinc Spooled Wire Formula: Zn
Percentage Purity: 99%
Product Shape: Spooled
Diameter: 0.025mm
Length: 1m
Temper: As Drawn
CAS Number: 7440-66-6
UOM Code: 008-440-73
eachStarting at $216.73
Discounts applied for volume purchases -
Tungsten Rod Formula: W
Percentage Purity: 99.95%
Diameter: 6.35mm
Length: 1000mm
Production Method: Centreless Ground
CAS Number: 7440-33-7
UOM Code: 000-457-40
eachStarting at $240.70
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Yttrium Spooled Wire Formula: Y
Percentage Purity: 99.9%
Product Shape: Spooled
Diameter: 0.5mm
Length: 0.1m
CAS Number: 7440-65-5
UOM Code: 027-639-63
eachStarting at $622.81
Discounts applied for volume purchases -
Tungsten Powder Formula: W
Percentage Purity: 99.9%
Maximum Particle Size: 100µm
Weight: 50g
CAS Number: 7440-33-7
UOM Code: 033-713-52
eachStarting at $277.70
Discounts applied for volume purchases
