Platinum Alloys
Engineered Platinum Alloys for Strength, Conductivity & Radiopacity
While pure platinum offers exceptional corrosion resistance and biocompatibility, many applications require additional mechanical strength, higher electrical resistance, or enhanced wear performance.
By carefully alloying platinum with elements such as iridium, rhodium, tungsten, nickel, and ruthenium, engineers can tailor material performance while preserving the corrosion resistance and stability that make platinum indispensable for critical applications.
Sigmund Cohn Corp. manufactures one of the industry's most comprehensive portfolios of precision platinum alloys, including proprietary compositions engineered specifically for demanding medical, sensing, aerospace, and industrial applications.
Available Platinum Alloys
| Alloy | Key Benefits |
|---|---|
| Platinum / 10% Iridium | Excellent radiopacity and corrosion resistance |
| Platinum / 20% Iridium | Increased mechanical strength |
| Platinum / 30% Iridium | Maximum strength and torque transmission |
| Platinum #851® | Outstanding chemical resistance and radiopacity |
| Platinum #479® | Extremely high resistivity with excellent strength |
| Platinum / Nickel | High tensile strength |
| Platinum / Ruthenium | Excellent mechanical performance |
Additional platinum alloy compositions, including platinum-palladium, platinum-gold-iridium, platinum-molybdenum, palladium, and custom proprietary alloys, are available upon request.
Selecting the appropriate platinum alloy requires balancing tensile strength, conductivity, wear resistance, radiopacity, corrosion resistance, manufacturability, and lifecycle performance.
Our metallurgists work closely with engineers throughout product development to identify the optimal alloy for each application. Alloys are available as precision wire, ultra-fine wire, ribbon and custom components.
Typical Applications
- Guidewires
- Implantable medical devices
- Precision sensors
- RTDs
- Electrical resistance components
- Aerospace instrumentation
- Industrial process equipment
Contact our engineering team to identify the platinum alloy best suited to your application.