PTFE-Insulated Platinum/Iridium Alloy Wire (Pt90/Ir10)

PTFE-Insulated Platinum/Iridium Alloy Wire (Pt90/Ir10) pairs the biocompatibility, corrosion resistance, and high melting point of this noble alloy with PTFE’s dielectric strength, chemical inertness, and temperature resilience. The PTFE layer ensures stable performance in biomedical, aerospace, and high-vacuum systems where electrical insulation must withstand extreme environments. Industries use it for implantable medical leads, aerospace sensor wiring, and high-reliability signal cables in corrosive atmospheres. Specific applications include surgical instrument connections, wiring for satellite instrumentation, and electrical links in high-purity chemical processing equipment. In research, it supports studies on noble alloy electrical performance, insulation stability under sterilization cycles, and high-frequency transmission in chemically reactive conditions. This wire’s unique combination of noble alloy performance and PTFE protection makes it indispensable in precision engineering and advanced medical technology.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Insulated Wire

Conductor Diameter		±10%
Insulation Thickness		Nominal
Length		+5% / -1%

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