7075 aluminum is much stronger than 6061 aluminum, but there are plenty of applications for which 6061 aluminum is sufficient in strength. 6061 aluminum even outperforms 7075 aluminum in certain applications, despite the latter being much stronger than the former. This is because 6061 aluminum has better thermal conductivity and a higher melting point, and is therefore a more suitable choice in high-temperature environments. 6061 aluminum is also easier to work on using machines. Overall, 6061 aluminum is a more affordable raw metal than 7075 aluminum, with many comparable qualities.