Copper & Copper-Based Alloys

Engineered Copper Alloys for Conductivity, Spring Performance & Stable Resistance

Copper remains one of the most versatile engineering materials because it offers an excellent balance of electrical conductivity, thermal performance, manufacturability, and cost. Many applications, however, demand additional mechanical strength, fatigue resistance, spring characteristics, or stable electrical resistance that pure copper alone cannot provide.

Sigmund Cohn Corp. manufactures precision copper and specialty copper alloys engineered to meet these demanding performance requirements. By carefully selecting alloy chemistry, heat treatment, and processing methods, we help engineers optimize conductivity, mechanical properties, and long-term reliability for their specific applications.

Available Copper Alloy

Constantan® is widely specified for precision resistors, thermocouples, and measurement systems because its electrical resistance remains remarkably stable over changing temperatures. Phosphor bronze and beryllium copper alloys provide the durability and spring force required for connectors, switches, and electrical contacts operating through millions of mechanical cycles.

Typical Applications

• Electrical conductors

• Connectors and contacts

• Precision springs

• Automotive electronics

• Sensors

• Industrial instrumentation

• Resistance measurement systems

• Thermocouples

Our engineers help customers evaluate conductivity, mechanical strength, fatigue life, resistance stability, manufacturability, and total lifecycle performance to identify the ideal copper alloy for every application.

Contact our engineering team to discuss the right balance of conductivity, spring performance, and mechanical properties for your design.