6061 aluminum plate and 6063 aluminum plate are both belong to the 6000 series aluminum alloy, they are similar but still have difference. The main alloying elements of 6061 and 6063 aluminum alloy are magnesium and silicon. 6061 aluminum has more alloy elements content than 6063 aluminum. With excellent processing performance, excellent weldability, extrusion and electroplating, good corrosion resistance, toughness. Easy to polish, coated, and anodized, is a typical extruded alloy.

6063 is widely used as 6063 aluminum sheet plate and 6063 aluminum profiles, so 6063 is applied in building profiles, irrigation pipes, vehicles, gantry, furniture, lifts, fences, etc. 6061 aluminum alloy is widely used as 6061 aluminum sheet plate and 6061 aluminum coil, there are generally T6, T4 and T651, 6061 aluminum plate has hardness of more than 95, so it is widely used in the machining industry. 6061 aluminum alloy can be applied in the place which requires a variety of industrial structures with high strength, weldability, and corrosion resistance, such as pipes, rods, and shaped timber for trucks, tower buildings, ships, trams, furniture, mechanical parts, precision machining, etc. During the applications, 6061 aluminum plate is used more wide than 6063 aluminum because it has higher strength.