Properties of Copper Wire

by Steve Johnson

Copper is commonly used in electronics. Its properties make it an industry favorite; copper wire is used as a medium for many types of transmissions.


Because of its conductivity, copper is used as a primary medium for electricity transport. Metals similar to copper—such as brass—cannot conduct electricity nearly as well. The only known metal to generate electricity better than copper is silver, which is far too expensive to use as a material in most circumstances.


One of copper wire's top qualities is malleability. It can be bent, manipulated, stretched and shaped. All of this can be done without cracking or inhibiting the functionality of the wire. Even heat or cold does not prevent the copper wire from being malleable.


Ductility allows copper wire to be put into a variety of forms. Ductile metals can be spun into extremely thin wire. Copper can be made thinner than the human hair. Copper that is 4 inches thick can be rolled to be 20 million times longer and can still be functional.


Another very important property of copper wire is its resistance to corrosion. By avoiding rust, copper remains effective over time, making it valuable especially in areas that have high humidity. Like most metals, copper has a very high melting point—1,083 degrees Centigrade.

About the Author

Steve Johnson is an avid and passionate writer with more than five years of experience. He's written for several industries, including health, dating and Internet marketing, as well as for various websites. He holds a bachelor's degree from the University of Texas.

Photo Credits

  • photo_camera copper cable image by Witold Krasowski from