SGS Standard Platinum Iridium Wire Pt Ir Wire 0.02mm-1mm Diameter

Description

The alloy has been used in "nonstandard" thermocouples, electrical contacts and for electrodes in medical research. The alloy is harder and mechanically stronger than Platinum.

This wire features a 90% Platinum and 10% Iridium composition and is widely used in the assembly of microelectrode probes. Iridium, a Platinum group metal, is very dense and hard, imparting added strength to the wire.

Technical Data for Platinum/Iridium wire

Electrical Properties

Electrical resistivity ( µOhmcm ): 25

Temperature coefficient ( K-1 ): 0.0013

Mechanical Properties

Elongation at break ( % ) <25

Hardness - Brinell 130-190

Tensile strength ( MPa )380-620

Physical Properties

Density ( g cm-3 )21.56

Melting point ( C )1800

Thermal Properties

Coefficient of thermal expansion @20-100C ( x10-6 K-1 )8.7

Thermal conductivity @23C ( W m-1 K-1 )31

Typical Analysis : (ppm)

Ag 100, Au 75, Cu 50, Fe 250, Ir 10%, Ni <100, Si <50, Pt balance.

Tolerances

Wire diameter: ±10%

Length:+5% / -1%