Copper Attributes and Alloys
Copper Attributes
Copper is…
Apart from silver, copper is the next best conductor of electricity. Copper’s superior conductivity allows smaller conductors to be used, saving space and cost. Apart from silver, copper is the best conductor of electricity. Copper has a 100 percent conductivity rating, and due to modern technological advances, can even reach 101 percent conductivity compared to its own standard when oxygen is removed. In comparison, metals like aluminum have only 61 percent of the conductivity of copper.
Copper Alloys
Pure copper has the best electrical and thermal conductivity of any commercial metal. Over half of the copper produced is used in electrical and electronic applications.
There are more than 400 copper alloys, each with a unique combination of properties to suit many applications, manufacturing processes and environments. Alloys are created by making a solid material out of two or more different metals. Learn more from the examples below.
Brass
is the generic term for a range of copper-zinc alloys with differing combinations of properties including strength, machinability, ductility, wear resistance, hardness, color, electrical and thermal conductivity and corrosion resistance.
Bronze
alloys are made from copper and tin and were the first to be developed about 4,000 years ago during the Bronze Age.
Copper-nickel
alloys have excellent resistance to marine corrosion and biofouling. The addition of nickel to copper improves strength and corrosion resistance without changing ductility.
Nickel-silver
alloys are made from copper, nickel and zinc and are sometimes regarded as special brasses. They have an attractive silvery appearance rather than the typical brassy color. Typical applications include coins and ornamental objects.
Beryllium Copper
alloys are used for their high strength and good electrical and thermal conductivities. It’s similar in mechanical properties to high-strength-alloy steel. However, it has better corrosion resistance than steel. There are two groups of beryllium-copper alloys: high strength alloys and high conductivity alloys.
Copper is essential to a modern world.
Learn more about copper’s contribution to a sustainable future.