1,Factory supply with best price
2,Diameter: from0.03mm-0.5mm
3,Used in nonstandard thermocouple
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.
PtIr 5,PtIr10,PtIr15,PtIr20,PtIr25 resistivity: 0.19-0.33 µOhm.m
Technical Data for Platinum/Iridium wire
Electrical Properties
Electrical resistivity ( µOhm.m ) : 0. 245
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%