What are the differences between 7075 and 6061 aluminum alloys?

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I. What are the differences between 7075 and 6061 aluminum alloys? 1. Different compositions: The 7075 series contains zinc as its main alloying element, with a proportion of up to 6%. The 6061 series is primarily alloyed with magnesium and silicon, with relatively low overall composition proportions.    2. Different strengths: In terms of strength, 7075 is quite strong – it’s on par with steel – but it’s only slightly stronger, just a bit more robust than 6061.    3. Different prices: 7075 is the lightest and strongest aluminum alloy, but it is also extremely expensive. On the other hand, 6061 is the most common aluminum alloy – it is lightweight, has good strength, and is cost-effective.     4. Different levels of practicality: 7075 contains a high proportion of other metals, which makes welding and processing it more difficult; due to this high content, it is generally not suitable as a material for frames. Due to its low content of other metals, 6061 can have its strength increased and its wind resistance reduced through various shaping and treatment methods; it is even possible to reduce its weight by performing tube drawing three times. Overall, 6061 is a better material. II. Differences between zinc alloys and aluminum alloys 1. Different raw materials: Zinc alloys are alloys based on zinc to which other elements are added; common alloying elements include aluminum, copper, magnesium, cadmium, lead, titanium, etc., in the case of low-temperature zinc alloys. Zinc alloys are manufactured by melting and are used as materials in die-casting and stamping processes. Aluminum alloys are a general term for alloys based on aluminum; the main alloying elements include copper, silicon, magnesium, zinc, and manganese, while the secondary alloying elements include nickel, iron, titanium, chromium, lithium, etc.    2. Different application scopes: Zinc alloys can be divided into cast zinc alloys and wrought zinc alloys based on their manufacturing processes. They can be used in die-casting for instruments, as coatings on automotive parts and utility poles to provide corrosion protection through galvanizing, and to enhance resistance to high-temperature corrosion in the piping of boiler water walls through galvanizing treatment. Aluminum alloy is the most widely used non-ferrous structural material in industry, and it is extensively applied in aviation, aerospace, automotive manufacturing, shipbuilding, the chemical industry, and more.     3. Different melt temperatures during processing: Zinc alloy is at over 400 degrees ； Aluminum alloy: over 700 degrees.     4. Different processing equipment: Although both use die-casting machines, they are not interchangeable at all.     Article summary: The above covers everything regarding the differences between 7075 and 6061 aluminum alloys; I hope it will be helpful to everyone.