Classification and Properties of Copper Alloys Copper and copper alloys are some of the most versatile engineering materials available. The combination of physical properties such as strength, conductivity, corrosion resistance, machinability and ductility make copper suitable for a wide range of applications. These properties can be further enhanced with variations in composition and manufacturing methods. Copper and copper alloys are some of the most versatile engineering materials available. The combination of physical properties such as strength, conductivity, corrosion resistance, machinability and ductility make copper suitable for a wide range of applications. These properties can be further enhanced with variations in composition and manufacturing methods. Copper and copper alloys can be used in an extraordinary range of applications. Some of these applications include: Power transmission lines Architectural applications Cooking utensils Spark plugs Electrical wiring, cables and busbars High conductivity wires Electrodes Heat exchangers and refrigeration tubing Plumbing Water-cooled copper crucibles.