... : 6063, 6061, 2.Surface : mill finishing, anodized, powder coated, Aluminium LED profile 1.General Chemical Composition of the aluminum tube Aluminum GradeSiFeCuMnMgCrZnTiimpurityAl60630. ... (Mpa)Stretch (Rpo.2 Mpa)Stretch RateWebster Hardness6063T5All16011088T6All2051808 6061T4All18011016 T6All2652458 Aluminium LED profile