Aluminium Alloy 6063
Aluminium alloy 6063 is a medium strength alloy commonly referred to as an architectural alloy. It is normally used in intricate extrusions.
It has a good surface finish, high corrosion resistance, is readily suited to welding and can be easily anodised. Most commonly available as T6 temper, in the T4 condition it has good formability.
Aluminium Alloy 6063A
Aluminium alloy 6063A is a variation of 6063 with greater strength but retains the same good surface finish qualities and affinity for anodising.
Chemical Composition
| Chemical Element | % Present |
| Manganese (Mn) | 0.0 - 0.10 |
| Iron (Fe) | 0.0 - 0.35 |
| Magnesium (Mg) | 0.45 - 0.90 |
| Silicon (Si) | 0.20 - 0.60 |
| Zinc (Zn) | 0.0 - 0.10 |
| Titanium (Ti) | 0.0 - 0.10 |
| Chromium (Cr) | 0.0 - 0.10 |
| Copper (Cu) | 0.0 - 0.10 |
| Other (Each) | 0.0 - 0.05 |
| Others (Total) | 0.0 - 0.15 |
| Aluminium (Al) | Balance |
Temper Types
The most common temper for 6063 aluminium are:
O - Soft
T4 - Solution heat treated and naturally aged to a substantially stable condition
T6 - Solution heat treated and artificially aged
Applications:
Architectural applications
Extrusions
Window frames
Doors
Shop fittings
Irrigation tubing
In balustrading the rails and posts are normally in the T6 temper and formed elbows and bends are T4. T4 temper 6063 aluminium is also finding applications in hydroformed tube for chassis.
