6063 aluminum alloy belongs to a low alloyed Al-Mg-Si series high plasticity alloy. Has many valuable features:
1. Strengthened by heat treatment, high impact toughness, insensitive to lack.
2. It has excellent thermoplasticity, and can be extruded at high speed into complex, thin-walled, and hollow profiles or forged into forgings with complex structure. The quenching temperature range is wide, and the quenching sensitivity is low. After extrusion and forging, after demoulding, As long as the temperature is higher than the quenching temperature. That is, it can be quenched by spraying water or piercing water. Thin-walled parts (6<3mm) can also be air quenched.
3. Excellent welding performance and corrosion resistance, no tendency of stress corrosion cracking. Among heat-treatable aluminum alloys, Al-Mg-Si alloys are the only alloys without stress corrosion cracking.
4. After processing, the surface is very smooth and easy to anodize and color. The disadvantage is that if it is parked at room temperature for a period of time after quenching, it will have an adverse effect on the strength.
【chemical composition】6063 aluminum alloy
Aluminum Al: Balance
Silicon Si: 0.20～0.60
Copper Cu: 0.10
Zinc Zn: 0.10
Manganese Mn: 0.10
Titanium Ti: 0.10
Chromium Cr: 0.10
Iron Fe: 0.35
【mechanical properties】6063 aluminum alloy
Tensile strength σb (MPa): ≥205
Elongation stress σp0.2 (MPa): ≥170
Elongation δ5 (%): ≥7