6063, 6061 aluminum alloy difference? Main alloy elements for magnesium and silicon, 6063 aluminum alloy has the processing performance is excellent, excellent weldability, extrusion and electroplating, good corrosion resistance, toughness, easy to polish, coated, anodized effect is good, is a typical extrusion alloy, widely used in building material, irrigation pipe, for vehicles, bench, furniture, elevators, fence etc with tube, rod, Profile 6063 is generally used for building profiles. The main alloying elements of 6061 aluminum alloy are magnesium and silicon, and form 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 improve the strength of the alloy without significantly reducing its corrosion resistance; There is also a small amount of copper in the conductive material to offset the adverse effects of titanium and iron on electrical conductivity; Zirconium or titanium can refine the grain and control the recrystallization structure; Lead and bismuth may be added to improve the machinability. In Mg2Si, the Mg/Si ratio is 1.73. In the heat treatment state, Mg2Si is immobilized in aluminum, which makes the alloy have artificial aging hardening function. 6061 requires a certain strength, weldability, high corrosion resistance of industrial structural parts. 6061 requirements have a certain strength, weldability and high corrosion resistance of various industrial structures, such as manufacturing trucks, tower buildings, ships, trams, furniture, machinery parts, precision processing of pipes, rods, shaped materials, plates. In general, 6061 has more alloying elements than 6063, so the material strength is higher.