The finest of the earth’s elements
Precious metals & alloys
Precision Metals and Specialty Alloys for Demanding Applications
The performance of a precision component begins with the right material. Electrical conductivity, mechanical strength, corrosion resistance, radiopacity, temperature stability, biocompatibility, and manufacturability can all influence how a component performs throughout its service life.
For more than 125 years, Sigmund Cohn Corp. has worked with engineers, OEM manufacturers, product developers, and procurement teams to provide precision metals and specialty alloys for demanding medical, aerospace, automotive, electronics, temperature sensing, industrial, and other technical applications.
Our extensive material portfolio includes high-purity precious metals, engineered platinum alloys, thermocouple materials, electrical resistance alloys, copper-based alloys, tungsten, and other specialty metals. Depending on the material and application, products are available as precision wire, ultra-fine wire, ribbon, rod, seamless tubing, and custom-fabricated components. Wire is drawn to diameters as small as 0.0003" and ribbon rolled as thin as 0.0002".
Explore our metals & alloys
Platinum
High-purity platinum for critical engineering applications
Exceptional corrosion resistance, biocompatibility, radiopacity, electrical stability, and high-temperature performance make platinum an important material for medical devices, RTDs, thermocouples, aerospace instrumentation, electronics, and other critical applications. Palladium and other platinum group metals are covered here.
Platinum Alloys
Engineered for strength, conductivity and radiopacity
Platinum alloys allow engineers to tailor mechanical strength, electrical resistance, wear performance, radiopacity, and other properties for medical, sensing, aerospace, and industrial applications.
Platinum-Rhodium & Thermocouple Alloys
Precision materials for high-temperature measurement
Platinum and platinum-rhodium thermocouple materials provide the compositional consistency, oxidation resistance, and thermoelectric stability required for Type R, Type S, and Type B thermocouples and other demanding temperature measurement applications.
Gold & Gold Alloys
High-reliability materials for electrical applications
High-purity gold and specialty gold alloys combine excellent conductivity with oxidation resistance, low contact resistance, and bondability for electronic components, bonding wire, connectors, medical devices, sensors, and aerospace electronics.
Silver & Silver-Copper Alloys
Exceptional electrical and thermal conductivity
High-purity silver and silver-copper alloys provide outstanding electrical and thermal performance for electrical contacts, electronic assemblies, sensors, medical devices, instrumentation, and other high-conductivity applications.
Copper & Copper-Based Alloys
Conductivity, strength and spring performance
Copper, Constantan®, phosphor bronze, and beryllium copper provide a range of electrical and mechanical properties for conductors, contacts, connectors, springs, sensors, thermocouples, and resistance measurement systems.
Nickel & Electrical Resistance Alloys
Precision materials for heating, sensing and control
Nickel and specialty resistance alloys provide stable electrical properties for RTDs, thermocouples, heating elements, hermetic seals, aerospace sensing, industrial instrumentation, and process control systems.
High-Temperature & Specialty Metals
Materials for specialized operating environments
Tungsten, aluminum, high-purity iron, and stainless steel provide engineers with additional options for applications involving extreme temperatures, weight reduction, corrosion resistance, dimensional stability, and specialized electrical or magnetic requirements.
Custom Processed Materials
Value-added processing for application-specific requirements
Sigmund Cohn Corp. combines material expertise with plating, electropolishing, specified electrical resistance, insulation, precision fabrication, and other value-added processes to provide application-ready materials and simplify the manufacturing supply chain.
Find the right material for your application
Selecting the right metal or alloy requires balancing material properties with manufacturing and performance requirements. Sigmund Cohn Corp. works with engineering, manufacturing, and procurement teams to evaluate alloy selection, surface finish, electrical resistance, dimensional tolerances, operating environment, production volume, and secondary processing requirements. All materials are manufactured under our ISO 9001:2015 certified quality system.
Not sure which material fits? Start from your industry.
Talk to our engineering team to discuss your application, identify the right material solution, or request a quote.