High-Purity Pt90Ir10 Tubes – Platinum-Iridium Small-Diameter Tubing for Global Markets
Product Description
Pt90Ir10 Tubes are precision-fabricated tubing composed of a platinum-iridium alloy with nominal composition 90% platinum and 10% iridium (Pt 90/Ir 10). This alloy tube is engineered for applications demanding exceptional chemical inertness, high temperature stability and robust mechanical performance in harsh service environments. With melting point around 1800 °C, density ~21.56 g/cm³, and tensile strength in the 380–620 MPa range, Pt90Ir10 tubing offers a unique combination of corrosion resistance, high purity and dimensional integrity. Whether used in aerospace propulsion systems, medical implants, high-temperature furnace assemblies or ultra-clean fluid transport in chemical processing, these Pt90Ir10 Tubes deliver reliable performance where conventional alloys fail.
Typical Specifications & Performance Parameters
Below is a representative specification table for Pt90Ir10 Tubes. Actual values may vary depending on manufacture route, temper and size.
| Parameter |
Value / Range |
| Chemical composition (nominal) |
Pt 90 % / Ir 10 % |
| Density |
~21.56 g/cm³ |
| Melting point |
Approx. 1800 °C |
| Tensile strength (Rm) |
~380–620 MPa |
| Hardness (Brinell) |
~130–190 HB |
| Elongation at break |
<25% |
| Electrical resistivity |
~25 µΩ·cm |
| Thermal conductivity |
~31 W/m·K at 23 °C |
| Coefficient of thermal expansion |
~8.7×10⁻⁶ K⁻¹ (20-100 °C) |
| Typical outer diameter (OD) |
e.g., 0.56 mm |
| Typical wall thickness |
e.g., 0.13 mm |
Standards & Execution: The Pt90Ir10 Tubes are produced in accordance with precious-metal tubing practices, with material certification (chemical and physical) available, and often meet standards such as ASTM B684 for platinum-iridium alloys, or equivalent premium alloy specifications.
Application Areas
The Pt90Ir10 Tubes are highly suited for a variety of demanding applications across global markets:
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Chemical processing: Used for ultra-pure fluid or gas delivery in corrosive media, thanks to excellent chemical inertness.
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Medical & biomedical devices: Ideal for long-term implantable leads, electrode housings and micro-tubing in neurostimulation or cardiac systems (especially relevant for South-East Asia, Middle East medical device OEMs).
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Aerospace & propulsion: Suitable for high-temperature thermocouple sheaths, sensor housings and small structural tubing in jet-engine components.
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Electronics & instrumentation: High-purity micro-tubing for high-end sensors, connectors and microscale precision devices.
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Research & advanced energy: Fuel-cell components, high-temperature reactors, and instrumentation in North America and Europe that demand both chemical stability and purity.
Frequently Asked Questions (FAQ)
Q1: What makes Pt90Ir10 Tubes different from standard platinum tubing?
A1: The addition of 10% iridium significantly increases mechanical strength and high-temperature stability compared with pure platinum, while retaining platinum’s superior corrosion resistance and chemical inertness. As a result, Pt90Ir10 Tubes are better suited for extreme environments.
Q2: Can I get custom diameters or wall thicknesses for Pt90Ir10 Tubes?
A2: Yes — many producers offer custom OD/ID and wall thickness specifications (for example OD 0.3 mm minimum, wall thickness as low as 0.015 mm in capillary versions) tailored for micro-fluidic or implantable device use.
Q3: What are the supply and sourcing considerations for Pt90Ir10 Tubes in markets such as Middle East or South Asia?
A3: Given that platinum and iridium are premium precious metals, price and material availability can fluctuate. Buyers in South Asia, Southeast Asia or Middle East should plan delivery lead-times and check certification, tubing tolerances, and ensure the supplier can provide full traceability and quality certificates. Investing in the correct specification up front ensures long-term reliability in harsh service.
Q4: How do I verify quality and performance of Pt90Ir10 Tubes?
A4: Request a Certificate of Analysis (COA) with actual chemical composition (Pt/Ir ratio), tensile/hardness test results, dimensional tolerances, and material condition (annealed, as-drawn). Cross-check with industry references: for example, Pt90Ir10 alloy is documented with hardness ~130-190 HB and tensile ~380-620 MPa.
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High-Purity Pt90Ir10 Tubes – Platinum-Iridium Small-Diameter Tubing For Global Markets Images
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