Aluminum is..... (IMAGE) DOE/Pacific Northwest National Laboratory Caption Aluminum is just one-third the price and weight of copper, but it is only about 60% as conductive. Aluminum’s relatively low conductivity can be a limitation in some real-world applications. Credit Image by Shannon Colson | Pacific Northwest National Laboratory Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.