Platinum/Iridium Alloy Tube (Pt90/Ir10)

Platinum/Iridium Alloy Tube (Pt90/Ir10) delivers exceptional chemical stability, high melting point performance, and enhanced wear resistance, making it well-suited for applications where extreme corrosion and temperature resistance are paramount. The tubular geometry allows for fluid or gas transport in aggressive chemical environments, high-temperature furnace assemblies, and specialized medical implants. Industries including chemical processing, aerospace propulsion, and biomedical engineering rely on Pt90/Ir10 tubes for tasks such as thermocouple sheathing, catalyst housing, and implantable medical components. In research, these tubes are utilized in high-purity chemical delivery systems, advanced fuel cell development, and experimental high-temperature reactors. The alloy’s combination of platinum’s chemical inertness with iridium’s mechanical reinforcement ensures structural reliability in service environments where failure is not an option.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Tube

Outside Diameter	=<2mm	±0.05mm
Outside Diameter	2mm - 5mm	±0.1mm
Outside Diameter	>5mm	±5%
Wall Thickness		±10%

Material Properties for Precious Metals

Mechanical Properties

Element	Value
Hardness - Brinell	130-190
Elongation at break( % )	<25
Tensile strength( MPa )	380-620

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	25
Temperature coefficient( K⁻¹ )	0.0013

Thermal Properties

Element	Value
Melting point( C )	1800
Thermal conductivity( W m⁻¹ K⁻¹ )	31@23
Thermal conductivity( W m⁻¹ K⁻¹ )	31@23C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	8.7@20-100°C