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Grade 1 Tungsten Straight Wire
Available Configurations
Properties common to all products in this list
Available Configurations
| Purity | Diameter | Length | Temper Options | Thermocouple Compatibility |
|---|---|---|---|---|
| 99.9% to 99.998% | 0.01mm to 1mm | 0.0015m to 285m | Annealed, As Drawn, Hard, Stress Relieved | Compatible with various thermocouples |
Need custom configurations? Please contact our Technical Solutions team.
Key Features
Platinum wire possesses a combination of material characteristics that make it particularly well suited for scientific, industrial, and biomedical applications:
Exceptional Chemical Inertness
Platinum resists corrosion and oxidation across a wide range of chemical environments, including strong acids, alkalis, and oxidising gases. Its stability under aggressive conditions ensures long-term reliability in corrosive or reactive systems.
High Melting Point (1,768°C)
With a melting point of 1,768.3°C, platinum maintains its structural integrity and electrical functionality in extreme thermal environments. This property is especially valuable in high-temperature furnaces, thermocouples, and vacuum systems.
Predictable Electrical Resistivity
Although platinum’s resistivity increases with temperature, it does so in a highly linear and repeatable manner. This characteristic makes it an ideal material for resistance-based temperature sensing devices, such as platinum resistance thermometers, where precision and reproducibility are essential.
Superior Ductility and Workability
Platinum can be cold-worked and drawn into ultra-fine wires without fracturing. Its mechanical resilience allows for its use in microfabricated components, coils, and precision sensor assemblies.
Catalytic and Electrochemical Stability
Platinum catalyses key redox reactions and remains electrochemically stable under both static and dynamic conditions. It is a preferred electrode material in fuel cells, electrolysers, and electrochemical sensors owing to its resistance to long-term degradation.
Biocompatibility
Naturally bioinert and non-toxic, platinum is extensively used in medical devices, neural implants, and biosensors. It does not trigger adverse immune responses, making it suitable for prolonged contact with biological tissues and fluids.
High Density and Reliable Thermal Conductivity
With a density of 21.45 g/cm³ and moderate thermal conductivity (approximately 71 W/m·K), platinum provides effective heat distribution and dimensional stability during thermal cycling. This is particularly important in precision instruments exposed to fluctuating temperatures.
Industrial Applications
Platinum wire finds extensive industrial applications across a wide range of sectors due to its exceptional physical and chemical properties:
- ✦ Aerospace Industry
- Used in thermocouples for jet engines, ensuring accurate temperature measurements under extreme conditions.
- ✦ Automotive Sector
- Essential for oxygen sensors and catalytic converters, helping to reduce emissions and improve fuel efficiency.
- ✦ Chemical Processing
- Serves as a durable material for electrodes and high-temperature reactors, maintaining stability in harsh environments.
- ✦ Electronics Manufacturing
- Utilized for precision resistors, thin-film circuits, and sensors, benefiting from excellent conductivity.
- ✦ Medical Applications
- Crucial for implantable devices like pacemakers and surgical instruments due to biocompatibility and durability.
Mentions in Scientific Literature
Goodfellow’s platinum wire features prominently in research including but not exclusive to domains such as:
Neuroscience & Biomedicine, where it underpins implantable electrodes and stent surrogates
[1–3]
.
Analytical & Electrochemical Science, powering voltammetry, impedance, micro-sensors and electrodes
[4–5]
.
Materials & Energy Research, acting as a corrosion-proof lead in catalyst evaluation, graphene production and molten-salt studies
[6–8]
.
Sensor/MEMS Engineering, where it forms the active filaments of miniature flow, pressure and temperature devices
[9–10]
.
Across these disciplines researchers have utilized our platinum wires as ultra-thin
neural stimulation/recording microelectrodes
[1–3]
, rugged
working, counter or reference electrodes for electrochemical cells
[4–8]
,
micro sensors
[9–10]
, and
inert current collectors or test probes in high-temperature and corrosive environments
[6–8]
— applications that all benefit from platinum’s purity, biocompatibility and stability.
References & Citations
Click to expand
- Forni, M., Thorbergsson, P. T., Gällentoft, L., Thelin, J., & Schouenborg, J. (2023). Sustained and potent analgesia with negligible side effects enabled by adaptive individualized granular stimulation in rat brainstem. Journal of Neural Engineering, 20(3), 036014. https://doi.org/10.1088/1741-2552/acd3b2
- Mohammed, M., Ivica, N., Bjartmarz, H., Thorbergsson, P. T., Pettersson, L. M. E., Thelin, J., & Schouenborg, J. (2022). Microelectrode clusters enable therapeutic deep brain stimulation without noticeable side-effects in a rodent model of Parkinson’s disease. Journal of Neuroscience Methods, 365, 109399. https://doi.org/10.1016/j.jneumeth.2021.109399
- Racz, R. R., Kollo, M., Racz, G., Bulz, C., Ackels, T., Warner, T., … Schaefer, A. T. (2022). jULIEs: Nanostructured polytrodes for low-traumatic extracellular recordings and stimulation in the mammalian brain. Journal of Neural Engineering, 19(1), 016041. https://doi.org/10.1088/1741-2552/ac514f
- Lim, K., Goines, S., Deng, M., McCormick, H., Kauffmann, P. J., & Dick, J. E. (2023). A troubleshooting guide for laser pulling platinum nanoelectrodes. Analyst, 148(13), 2992–3001. https://doi.org/10.1039/D3AN00268C
- Elshamy, Y. S., Strein, T. G., Holland, L. A., Li, C., DeBastiani, A., Valentine, S. J., … Shaffer, T. A. (2022). Nanoflow sheath voltage-free interfacing of capillary electrophoresis and mass spectrometry for the detection of small molecules. Analytical Chemistry, 94(32), 11329–11336. https://doi.org/10.1021/acs.analchem.2c02074
- Yu, P., Tian, Z., Lowe, S. E., Song, J., Ma, Z., Wang, X., … Zhong, Y. L. (2016). Mechanically-assisted electrochemical production of graphene oxide. Chemistry of Materials, 28(22), 8429–8438. https://doi.org/10.1021/acs.chemmater.6b04415
- Consiglio, A. N., Carotti, F., Liu, E., Williams, H., & Scarlat, R. O. (2022). Design and operation of a molten-salt electrochemical cell. MethodsX, 9, 101626. https://doi.org/10.1016/j.mex.2022.101626
- Rovetta, A. A. S., Browne, M. P., Harvey, A., Godwin, I. J., Coleman, J. N., & Lyons, M. E. G. (2017). Cobalt hydroxide nanoflakes and their application as supercapacitors and oxygen evolution catalysts. Nanotechnology, 28(37), 375401. https://doi.org/10.1088/1361-6528/aa7f1b
- Wang, H., Lim, K. B., Lawrence, R. F., Howald, W. N., Taylor, J. A., Ericsson, L. H., Walsh, K. A., & Hackett, M. (1997). Stability enhancement for peptide analysis by electrospray using the triple-quadrupole mass spectrometer. Analytical Biochemistry, 250(2), 162–168. https://doi.org/10.1006/abio.1997.2214
- Ecker, R., & Jakoby, B. (2024). Microfluidic flowmeter using a single hot wire. Proceedings, 97(1), 64. https://doi.org/10.3390/proceedings2024097064
Synonyms
Material 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 |
| 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 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 5.4@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 |
| Element | Value |
|---|---|
| Boiling point( C ) | 5660 |
| Density( gcm⁻³ ) | 19.3@20°C |
| 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 |
Tolerances
| Diameter | ±10% | |
|---|---|---|
| Length | +5% / -1% |