1. The composition is different: The 7075 series is mainly composed of zinc, with a composition ratio of up to 6%. The 6061 series is mainly composed of magnesium and silicon, with a lower total composition ratio.
  2. The strength is different: In terms of strength, 7075 is stronger, not inferior to steel, but only slightly stronger, only slightly stronger than 6061.
  3. The price is different: 7075 is the lightest and strongest aluminum material, and its price is also super expensive. 6061 is the most common aluminum material, lightweight, strong, and economical.
  4. Practicality is different: 7075 contains a higher proportion of other metals, so welding and processing are more difficult. Its proportion is higher, so it is usually not used as a frame material. 6061 contains a lower proportion of other metals, so it can be made stronger and its wind resistance reduced through various shaping and processing techniques. It can even be drawn three times to reduce weight. Overall, 6061 is a better material.

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