6066 T4 aluminum alloy belongs to the Al-Mg-Si-Cu system and stands out as an engineering material with a balanced combination of high strength and good formability. The T4 temper is achieved through solution heat treatment and natural aging, providing the alloy with medium-high strength and good ductility. Compared to 6061 and 6082 alloys, 6066 offers higher mechanical strength, while providing better corrosion resistance and machinability than high-strength alloys like 7075.

In terms of corrosion resistance, the 6066 T4 alloy exhibits a well-balanced performance. In marine and atmospheric conditions, it shows corrosion resistance similar to 6061 and significantly better than 2024. However, due to its copper content, it may have slightly lower resistance compared to pure Al-Mg-Si alloys. This resistance can be significantly improved through surface treatments and coatings. Therefore, the alloy is safely used in automotive and transportation components exposed to outdoor environments.

Regarding strength and vibration behavior, the 6066 T4 alloy delivers high performance. Its fatigue strength and vibration damping capability are superior to most 6000 series alloys. It distinguishes itself from lower-strength alloys like 6063, while offering a more balanced performance compared to 7075. These characteristics make it suitable for aerospace, railway systems, and applications with high dynamic loads.

In terms of machinability and bending properties, the 6066 T4 alloy is highly advantageous. Due to its T4 temper, it is suitable for cold forming and bending operations, with a low risk of cracking. It provides better formability than 2024 and similar machinability to 6061. It shows good chip formation behavior in CNC operations and delivers high surface quality, which is beneficial for producing complex geometries.

Regarding weldability and coating capability, the 6066 alloy has moderate weldability. Although it is not as easy to weld as 6061, satisfactory results can be achieved with proper techniques. It is suitable for coating and anodizing, and its performance can be enhanced with protective and aesthetic surface treatments. These features make it widely used in automotive, defense, aerospace, machinery manufacturing, and structural applications.

MATERIAL COMPOSITION STANDARDS

6066 T4 can be produced according to the following standards.
• 6066 T4 Cold-Drawn Rod; ASTM B211, UNS A96066, ISO AlMg0.7Si, BS 2 L84
• 6066 T4 Cold-Drawn Tube; ASTM B211, UNS A96066, ISO AlMg0.7Si, BS 2 L84
• 6066 T4 Cold-Drawn Sheet; ASTM B211, UNS A96066, ISO AlMg0.7Si, BS 2 L84
• 6066 T4 Cold-Drawn Wire; ASTM B211, UNS A96066, ISO AlMg0.7Si, BS 2 L84
• 6066 T4 Extrusion Rod; AMS QQ-A-200/10, ASTM B221, UNS A96066, ISO AlMg0.7Si
• 6066 T4 Extrusion Tube; AMS QQ-A-200/10, ASTM B221, UNS A96066, ISO AlMg0.7Si
• 6066 T4 Extrusion Sheet; AMS QQ-A-200/10, ASTM B221, UNS A96066, ISO AlMg0.7Si
• 6066 T4 Extrusion Wire; AMS QQ-A-200/10, ASTM B221, UNS A96066, ISO AlMg0.7Si
 

CHARACTERISTIC PROPERTIES OF 6066 T4:

• Strength: Upper medium (below 0°C)
• Machinability: Moderate
• Weldability: Medium (Protective arc and filler welding preferred)
• Formability: Very Good
• Corrosion Resistance: Very Good (Increases with coating)
• Heat Treatment: Yes
   

COMMON APPLICATIONS OF 6066 T4:
Electrical components, interior elements,
Radiators and office furniture,
Also used in pneumatic installations.
 

STOCK
We supply 6066 T4 in rod/sheet and tube/profile forms.

• Rod / Sheet
• Tube / Profile