2011 T6 aluminum alloy is an alloy within the 2000 series aluminum alloys that is particularly known for its excellent machinability. Copper is a major alloying element in its composition, which provides the material with high mechanical strength. The T6 temper is obtained after solution heat treatment followed by artificial aging, and this heat treatment condition increases the hardness and strength of the alloy. 2011 T6 is frequently preferred in mass-produced components because it exhibits very good chip-breaking characteristics, especially in automatic screw machining operations.

The strength of the 2011 T6 alloy is higher than many commonly used machinable aluminum alloys. In terms of tensile strength, it can show values close to 6061-T6, although in some cases it does not reach the structural strength levels of 2024-T3. However, in terms of machinability, 2011 is significantly superior to both 6061 and 2024 alloys. For this reason, it is commonly used in the production of precision screws, fasteners, and machined mechanical components.

In terms of corrosion resistance, 2011 T6 may exhibit more limited performance compared to some other aluminum alloys because the copper content may increase susceptibility to galvanic corrosion. For example, magnesium-based alloys such as 5052 or 5083 demonstrate much better corrosion resistance in marine environments. Therefore, 2011 T6 is often used with protective coatings or surface treatments. The alloy can also achieve improved corrosion performance with anodizing and other surface coatings.

In terms of bendability and weldability, 2011 T6 shows limited performance similar to other high-strength copper-based alloys. This alloy is generally not recommended for welding, as the mechanical properties may decrease in the welded area. In contrast, 6061 alloy offers much better weldability. Its bending characteristics are moderate and are not as good as more ductile alloys such as 3003 or 5052.

2011 T6 aluminum alloy is widely used in industries such as automotive manufacturing, machinery production, electronics, and precision mechanical engineering. It offers major advantages in the production of components such as screws, pins, fasteners, threaded parts, and automatic screw-machine components. In addition, its stable behavior under vibration and its ability to maintain high dimensional accuracy make it a valuable material in precision mechanical applications. Due to these characteristics, 2011 T6 occupies an important place in industrial production requiring high machinability.

MATERIAL COMPOSITION STANDARDS

2011 T6 is available in the following standards:
• 2011 T6 Extrusion Round Bar; ASTM B221,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
• 2011 T6 Extrusion Sheet; ASTM B221,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
• 2011 T6 Extrusion Wire; ASTM B221,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
• 2011 T6 Extrusion Tube; ASTM B221,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
• 2011 T6 Cold Drawn Round Bar; AMS QQ-A-225/3,ASTM B211,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
• 2011 T6 Cold Drawn Sheet; AMS QQ-A-225/3,ASTM B211,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
• 2011 T6 Cold Drawn Wire; AMS QQ-A-225/3,ASTM B211,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
• 2011 T6 Cold Drawn Tube; ASTM B210,UNS A92011,WNR 3.1655,ISO AlCu6BiPb,AFNOR A-U5PbBi,UNE L-3192,UNI 9002/5
 

CHARACTERISTIC PROPERTIES OF 2011 T6:

• Strength: Good
• Machinability: Very Good
• Weldability: Poor
• Formability: Average
• Corrosion Resistance: Moderate
• Heat Treatment: Yes
   

SOME COMMON APPLICATIONS OF 2011 T6:
In decorative and ornamental parts,
In atomizer cooling devices,
Used in precision machinery components.
 

STOCK
2011 T6 is produced/supplied in round bar/sheet and tube/profile forms

• Round Bar / Sheet
• Tube / Profile