6063-T6 aluminum is 6063 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The graph bars on the material properties cards below compare 6063-T6 aluminum to: 6000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it’s 50% of the highest, and so on.

6063 aluminum sheet is the most common alloy used for aluminium extrusion. It allows complex shapes to be formed with very smooth surfaces fit for anodizing and so is popular for visible architectural applications such as window frames, door frames, roofs, and sign frames.Applications requiring higher strength typically use 6061 or 6082 instead.

6063 VS 6061 One key difference is that 6061 is the stronger of the two, and in the T6 temper its strength is approximately equal to structural steel. As such, it is often used for structural applications. One advantage of 6063, on the other hand, is that it’s easier to form into complex shapes with smooth surfaces. It is also very suitable for anodizing.