The 6063 aluminum alloy is extensively utilized for the framework of aluminum doors, windows, and curtain walls in building construction.
To ensure these doors, windows, and curtain walls possess superior wind resistance, assembly performance, corrosion resistance, and aesthetic appeal, the comprehensive performance requirements for this aluminum alloy profile significantly exceed those of industrial profile standards.

I. Chemical Composition of 6063 Aluminum Alloy
Chemical Composition Limits wt% | |||||||||
Cu | Si | Fe | Mn | Mg | Zn | Cr | Ti | Pb.Bi | Al |
0.1 | 0.2-0.6 | 0.4 | 0.1 | 0.45-0.9 | 0.1 | 0.1 | 0.1 | / | Remaining |
The primary alloying elements in 6063 aluminum are magnesium and silicon. According to expert analysis, it boasts exceptional machinability, superior weldability, extrudability, and electroplating capabilities.
This alloy also displays robust corrosion resistance and toughness, is readily polishable and color-coatable, and yields excellent anodization results. Therefore, it is a quintessential extrusion alloy.
II. Mechanical Properties of 6063 Aluminum Alloy
Mechanical and physical properties. | ||||
Weldability | Machinability | Corrosion Resistance | Electrical Conductivity 20℃(68℉) | Density |
(%IACS) | (20℃) (g/cm3) | |||
Excellent | General | Excellent | 55-63 | 2.7 |
Tensile Strength | Yield Strength (25°C MPa) | Hardness | Elongation rate | Maximum Shear Stress |
(25°C MPa) | 500 kg-force 10mm sphere | 1.6mm (1/16in) thickness | MPa | |
185 | 145 | 60 | 12 | 115 |
III. 6063 Aluminum Alloy Applications
6063 aluminum alloy is extensively employed in:
Architectural profiles, irrigation pipes, vehicle components, frameworks, furniture, elevators, and for the production of tubes, rods, and profiles utilized in fences and similar structures.