Both 6061 and 6063 aluminum plates are of 6000 series, containing magnesium and silicon. Generally speaking, aluminium alloys of the same series share similar properties to a large extent. In spite this, differences do exist. What are the differences between 6063 and 6061, then?
The core lies in composition difference that leads to variation of properties between the two. The main alloying elements of 6063 aluminum sheet are magnesium and silicon. This alloy is easy to process, excellent in welding ability and extruding ability, outstanding in corrosion resistance, and super in anodizing effect. Easy polished and coated, 6063 aluminum plate proves to be a typical extruded alloy, widely used in building profiles, irrigation pipes, pipes, rods, profiles and other fields for vehicles, benches, furniture, elevators, fences, etc.
Although the main alloying elements of 6061 aluminum sheet are also magnesium and silicon, the alloy has the Mg2Si phase inside. This makes it possible to neutralized the bad effects of iron by combination with a certain amount of manganese and chromium or to increase the strength of the alloy by mixing it with a small amount of copper or zinc without significantly reducing its corrosion resistance. If it’s used as a conductive material, copper is added to counteract the adverse effects of titanium and iron on electrical conductivity. Zirconium or titanium, on the other hand, can refine the grains and control the recrystallization structure.
Stronger than 6063 aluminium, 6061 aluminium alloy sheet is applied in making products that require a certain degree of strength and high corrosion resistance, such as tubes, rods and shapes for trucks, tower buildings, ships, trams, furniture, mechanical parts, precision machining, etc.