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Alloying elements, material strength and price comparison of 6061 and 6063 aluminum alloys

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    The main alloying elements of 6063 aluminum alloy are magnesium and silicon. It has excellent processing properties, excellent weldability, extrudability and electroplating properties, good corrosion resistance, toughness, easy polishing, upper coating and excellent anodizing effect. It is a typical extruded alloy widely used in building profiles, irrigation pipes, pipes, rods and profiles for vehicles, benches, furniture, lifts, fences, etc.
    The main alloying elements of 6061 aluminum alloy are magnesium and silicon, and form a Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effect of iron; sometimes a small amount of copper or zinc is added to increase the strength of the alloy without significantly reducing the corrosion resistance; Copper to counteract the adverse effects of titanium and iron on conductivity; zirconium or titanium can refine grains and control recrystallized structure; in order to improve machinability, lead and antimony can be added.
    In Mg2Si, the Mg/Si ratio is 1.73. Under heat treatment, Mg2Si is solid-melted in aluminum, giving the alloy an artificial age hardening function.
    6061 requires various industrial structures with certain strength, weldability and high corrosion resistance, such as pipes, rods, profiles, etc. for the manufacture of trucks, tower buildings, ships, trams, furniture, mechanical parts, precision machining, etc. sheet.
    In general, 6061 has more alloying elements than 6063, so the material strength is higher.
    The production cost of 6063 aluminum sheet and 6061 aluminum sheet is similar, but the application of 6061 is wider, the production process is more mature, and the price is lower than the 6063 aluminum sheet of the same specification.