The alloy composition content of 6063 aluminum alloy and 6005 is different. The magnesium content of 6005 is between 0.4%-0.6% and the silicon content is between 0.6%-0.9%. The magnesium content of 6063 is between 0.45%-0.9% and the silicon content. Between 0.2% and 0.6%, the content of other trace elements is also different. Therefore, the different alloy composition content will lead to different performance, strength, and use range.

Under normal circumstances, the plasticity of 6063 aluminum alloy is worse than that of 6061. Therefore, most extruded profiles without special requirements use the 6063 grade. However, the strength and processability of 6063 are not as good as 6061 aluminum, and 6005 aluminum is better than 6001 and 6003 aluminum. The material has higher tensile strength and yield strength, and better fracture toughness. Profiles with higher strength requirements will use the 6005 grade.

