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Platinum-Iridium alloys have the chemical stability of platinum with increased hardness due to the addition of iridium. Platinum-iridium alloys are ductile, malleable and versatile in their manufacturing capabilities.
Medical device manufactures use platinum-iridium alloys in cardiac rhythm management devices, catheters and stents, neuromodulation devices, and other medical devices.
Some uses for platinum iridium alloys include pacemakers, used to treat heart disorders that result in slow or irregular heartbeat, usually contain at least two platinum-iridium electrodes, through which pulses of electricity are transmitted to stabilize the heartbeat.
Other uses of platinum iridium alloys include electrical contacts, spark plugs, electro explosive devices, medical leads and electrodes, thermistors, catalytic applications, jewelry, pen points, surgical pins or pivots and the kilogram and meter standards used by the department of weights and measures.
Platinum/Iridium alloy type:
Pt95/Ir5
Pt90/Ir10
Pt85/Ir15
Pt80/Ir20
Pt75/Ir25
Pt70/Ir30
Platinum/Iridium wire diameter:
0.03mm
0.05mm
0.1mm
0.125mm
0.2mm
0.25mm
0.3mm
0.35mm
0.4mm
0.45mm
0.5mm
0.6mm
0.7mm
0.8mm
0.9mm
1.0mm and other diameter can be customized
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Platinum Iridium Alloy Property | |||||||
Purity | Tensile Strength/MPa | Elongationδ/% | Hardness/HV | Electrical Resistivity (Ω·m) | |||
Hard State | Annealing State | Hard State | Annealing State | Hard State | Annealing State | ||
PtIr10 | 625 | 430 | 8 | 25 | 185 | 140 | 2.4x10-7 |
PtIr20 | 980 | 630 | 3.8 | 26 | 260 | 195 | 3.0X10-7 |
PtIr25 | 1150 | 880 | 1.5 | 14 | 310 | 240 | 3.4X10-7 |
PtIr30 | 1200 | 1180 | 1.0 | 10 | 350 | 300 | 3.8X10-7 |
PtIr-Pd | 1160 | 870 | 2.5 | 23 | 367 | 308 | 5.0X10-7 |
PtIr-Ru | 1860 | 1390 | 4.8 | 8 | 505 | 325 | 5.0X10-7 |