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.

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.