2011 T451 aluminum alloy offers excellent machinability, good mechanical strength, and moderate corrosion resistance. It is known as one of the most suitable alloys for projects requiring high-speed machining. The T451 temper indicates that the alloy has undergone solution heat treatment followed by stress-relief processing. This provides mechanical durability and long-term performance to the alloy.

This alloy is commonly used in automotive, aerospace, mechanical components, and precision instruments. Its high-speed machinability provides a significant advantage in manufacturing complex and detailed parts. 2011 T451 has limited compatibility for anodizing; while surface treatments are possible, special care is required during anodizing due to its copper content. Weldability is limited; mechanical fasteners or special welding methods are generally preferred.

Bending and forming capabilities are limited due to the alloy's high strength. There may be a risk of cracking during complex forming operations, but successful results can be achieved with proper techniques. It provides satisfactory fatigue resistance and maintains mechanical stability in high-vibration environments. This makes it a reliable choice for structures exposed to dynamic loads.

Corrosion resistance is moderate; surface protection treatments are recommended for abrasive conditions or when higher durability is required. Its advantages include excellent machinability, good mechanical strength, and fatigue resistance, while its disadvantages include limited weldability, moderate corrosion resistance, and low formability. These features make 2011 T451 aluminum alloy ideal for projects requiring lightness and precision.
 

MATERIAL COMPOSITION STANDARDS

2011 T451 can be available in the following standards:
• 2011 T451 Extruded Round Bar; ASTM B221, UNS A92011, WNR 3.1655, ISO AlCu6BiPb, AFNOR A-U5PbBi, UNE L-3192, UNI 9002/5
• 2011 T451 Extruded Flat Bar; ASTM B221, UNS A92011, WNR 3.1655, ISO AlCu6BiPb, AFNOR A-U5PbBi, UNE L-3192, UNI 9002/5
• 2011 T451 Extruded Wire; ASTM B221, UNS A92011, WNR 3.1655, ISO AlCu6BiPb, AFNOR A-U5PbBi, UNE L-3192, UNI 9002/5
• 2011 T451 Extruded Tube; ASTM B221, UNS A92011, WNR 3.1655, ISO AlCu6BiPb, AFNOR A-U5PbBi, UNE L-3192, UNI 9002/5
 

KEY CHARACTERISTICS OF 2011 T451:

• Strength: Good
• Machinability: Very Good
• Weldability: Low
• Formability: Moderate
• Corrosion Resistance: Low
• Heat Treatable: Yes
   

SOME WELL-KNOWN APPLICATIONS OF 2011 T451:
In speedometer frames,
Decorative elements,
Also used in variable-stroke engines.
 

STOCK
2011 T451 is produced and supplied in rod/flat bar and tube/profile forms.

• Rod / Flat Bar
• Tube / Profile