Comparing Aluminum 6061 vs 6063 Aluminum Alloy Sheet

date:2024-10-09 13:43:54 click: 107

6061 aluminum alloy and 6063 aluminum alloy both belong to the 6-series Al-Mg-Si alloy, with Mg and Si as the main alloying elements. Heat treatment can strengthen the alloy. In heat treated reinforced aluminum alloys, Al-Mg-Si alloy is an alloy in which no stress corrosion cracking phenomenon has been found.

6063 Aluminum Alloy

6063 aluminum plate has excellent processing performance, weldability, extrusion and electroplating properties, good corrosion resistance, toughness, easy polishing and coloring film, excellent anodizing effect, and is a typical extrusion alloy. 6063 aluminum alloy profiles are widely used in building profiles, irrigation pipes, supply vehicles, benches, furniture, elevators, fences, etc. due to their good plasticity, moderate heat treatment strength, good welding performance, and gorgeous surface color after anodizing treatment.

6061 Aluminum Alloy

The main alloying elements of 6061 aluminum plate are magnesium and silicon, forming Mg2Si. If it contains a certain amount of manganese and chromium, it can neutralize the harmful effects 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 conductive materials to offset the adverse effects of titanium and iron on conductivity; Zirconium or titanium can refine grain size and control recrystallization structure; To improve machinability, lead and bismuth can be added. Mg2Si solid solution in aluminum gives the alloy artificial age hardening function. The main alloying elements in 6061 aluminum alloy are magnesium and silicon, which have moderate strength, good corrosion resistance, weldability, and good oxidation effect.


It contains a small amount of Cu, so its strength is higher than 6063, but its quenching sensitivity is also higher than 6063. After extrusion, it cannot be quenched by air and needs to be re solution treated and quenched for aging in order to obtain higher strength.


6061 requires various industrial structures with certain strength, weldability, and high corrosion resistance, such as pipes, rods, shapes, and plates used in the manufacturing of trucks, tower buildings, ships, trams, furniture, mechanical parts, precision machining, etc.


The production cost of 6063 aluminum plate and 6061 aluminum plate is similar, but 6061 has a wider range of applications, a more mature production process, and a lower price than 6063 aluminum plate of the same specifications.


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