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MetalsTek is a leading manufacturer and supplier of Platinum Wire. Our product is high-purity and accurate. We produce tailored products for your specific applications with short lead times and competitive prices.
Material: Platinum, Pt
Purity: 99.95%, 99.99%
Thermal Conductivity: 72 W/m.K
Properties: 21.45g/cc Density, 1,772°C M.P.
Wire Shape: Round Wire, Flat Wire, Square Wire
Size: Diameter>0.01mm * Length
Material: Platinum, Pt
Purity: 99.95%, 99.99%
Properties: 195.084 M.W, 21.45g/cc Density, 1,772°C M.P.
Thermal Conductivity: 72 W/m.K
Thermal Evaporation: Boat/Coil/Basket – W; Crucible – C
Size: Diameter 0.5mm / 0.02”
Platinum Alloy Wire, Thermal Couple Wire
Material: PtAu, PtIr, PtRh
Composition: PtAu5, PtIr(5%~25%), PtRh(10%~30%)
Purity: Pt ≥ 99.95%, Au ≥ 99.99%, Ir ≥ 99.99%, Rh ≥ 99.99%
Wire Shape: Round, Half-Round/Flat Wire, Square
Size: Diameter 0.1~4mm (0.004”~0.16”) /PtRh – Dia.0.03~0.81mm
Material: Platinum Rhodium
Composition: PtRh(10%~30%)
Purity: Pt ≥ 99.95%, Rh ≥ 99.99%
Type: B(PtRh30%), R(PtRh13%), S(PtRh10%)
Wire Shape: Round, Half-Round/Flat Wire, Square
Size: PtRh – Dia.0.03~0.81mm
Descriptions
Platinum-Rhodium (Pt-Rh) Thermocouple Wires have high resistance to oxidation and corrosion at high temperatures. Types R, S, and B thermocouples use platinum or a platinum/rhodium wire for each conductor. Equipped with rich knowledge and experience in this field, MetalsTek Engineering is a leading thermocouple wire supplier across the world and has been providing high-quality Platinum-Rhodium Thermocouple Wires for many years.
Standard Sizes-mm(inch)
0.03 (0.001)/0.05 (0.002)/0.08 (0.003)/0.13 (0.005)/0.20 (0.008)/0.25 (0.010)/0.38 (0.015)/0.51 (0.020)/0.64 (0.025)/0.81 (0.032)
Specifications
| Type | Material | Diameter (mm) | Maximum continuous operating temperature (°C) | |
|---|---|---|---|---|
| Short term use | Long term use | |||
| S Type | Pt-Pt90Rh | 0.5 | 1600 | 1800 |
| R Type | Pt-Pt87Rh | 0.5 | 1600 | 1800 |
| B Type | Pt-Pt70Rh | 0.5 | 1600 | 1800 |
| Pt | Pt90Rh | Pt87Rh | Pt70Rh | |
|---|---|---|---|---|
| Resistivity at 0 °C (μΩ*cm) | 9.81 | 18.1 | 19 | 18 |
| Resistance ratioR100/R0 | 1.392 | 1.169 | 1.156 | 1.136 |
| Coefficient of heat conductivity(W/M*K) | 71 | 30 | 30 | 30 |
| Tensile strength(Mpa) | 156.8 | 343 | 343 | 480.2 |
| Ductility (%) | 40 | 30 | 30 | 33 |
| Melting point(°C) | 1771.4 | 1835 | 1865 | 1945 |
| Density(g/cm3) | 21.45 | 20 | 19.6 | 17.6 |
Platinum Rhodium Thermocouple Wire Notes
Types R and S are suggested to be applied for continuous use in oxidizing or inert atmospheres up to 2550°F (1,398°C) or short-term exposures to 2,700°F (1,482°C). Type B is recommended for continuous use up to 3,100°F (1,704°C) in oxidizing or inert atmospheres. When operating near these maximum temperatures, heavier gauge wire sizes are recommended.
All these three thermocouple types can be used in a vacuum for short periods of time. Type B offers greater stability in such applications. None of them should be used in reducing atmospheres or in atmospheres containing metallic or non-metallic vapors unless protected by non-metallic protection tubes. Avoid inserting directly into metallic protection tubes!
Wire diameters are from 0.001 to 0.032″ (0.025 to 0.812 mm). When requested, the wire is supplied in matched pairs that meet or exceed standard limits of error. The special-limits-of-error wire is supplied on request and must be ordered as matched pairs.
Platinum-Rhodium Wire Applications
Platinum-Rhodium (Pt-Rh) Thermocouple Wire is widely used in making thermocouples or heating elements. Pt-Rh wire is also used in making components on spacecraft or airplanes. Last but not least, Pt-Rh wire can be used in making the pacemakers because of its biocompatibility and good corrosive resistance.
Insulated duplex extension grade wire for types R, S, and B are also available.
Platinum Wire is a remarkable material renowned for its exceptional properties and diverse industry applications. Fabricated from pure platinum metal, Platinum Wire boasts high-temperature resistance, withstanding extreme heat environments exceeding 1,000°C without compromising its structural integrity. Its remarkable chemical stability renders it resistant to corrosion and oxidation by acids, bases, and solvents, making it indispensable in chemical processing equipment and laboratory apparatus. Additionally, Platinum Wire exhibits good electrical conductivity, albeit lower than copper or silver, making it ideal for applications requiring reliable electrical contacts and circuitry in aerospace, automotive, and medical devices. Its catalytic activity is notable as an effective catalyst in hydrogenation, oxidation, and chemical synthesis processes. At the same time, its biocompatibility makes it suitable for use in surgical instruments, implants, and dental prosthetics. Furthermore, Platinum Wire’s rarity, durability, and lustrous appearance elevate its status in the jewelry industry, where it is prized for crafting exquisite pieces renowned for their timeless beauty and value retention.
Our Platinum Wires are clearly labeled externally to ensure efficient identification and quality control. To prevent any damage during storage or transportation, we take great care.