6061 T6511 aluminum alloy belongs to the Al-Mg-Si series, strengthened by precipitation hardening, and is a versatile and widely used engineering material. This alloy stands out with its high corrosion resistance, good mechanical properties, and balanced performance. Due to its resistance to marine environments and atmospheric conditions, it is safely preferred in both indoor and outdoor applications. 6061 T6511 is typically supplied in extruded form, providing high dimensional stability.

The strength of this alloy is well-balanced within the 6000 series; it is generally higher than 6063 but lower than 7075. For example, while 7075 offers much higher strength, it falls behind 6061 in terms of corrosion resistance and weldability. The 2024 alloy, despite its high strength, is known for poor corrosion resistance, whereas 6061 is more advantageous in this respect. Therefore, 6061 T6511 is preferred in applications requiring an optimal balance between strength and durability.

In terms of machinability, 6061 T6511 performs very well and provides good surface finish in machining processes. It also has excellent weldability and can be easily joined using common welding methods such as TIG and MIG. In contrast, 7075 is not suitable for welding, making 6061 more attractive for structural applications. Additionally, the alloy has good coating capability, allowing for both protective and aesthetic surfaces through anodizing.

The bending and forming capability is somewhat limited in the T6511 temper but can be applied under controlled conditions. While 6063 offers better formability, 6061 is preferred for its higher strength. Furthermore, the alloy has a moderate vibration damping characteristic, providing adequate performance in mechanical systems for resonance control. This is important in machine components and structural systems.

The 6061 T6511 alloy is widely used in sectors such as aerospace, automotive, defense, construction, and machinery manufacturing. It is particularly preferred in structural profiles, support systems, pipes, and chassis components. While 2024 is mainly used in aerospace, 7075 in high-strength critical parts, and 6063 in architectural applications, 6061 stands out as the most balanced and versatile solution among these alloys.

Material Composition Standards

6061 T6511 is available according to the following standards:
• 6061 T6511 Extruded Round Bar; AMS 4173, AMS QQ-A-200//8, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T6511 Extruded Flat; AMS 4173, AMS QQ-A-200//8, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T6511 Extruded Wire; AMS 4173, AMS QQ-A-200//8, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
• 6061 T6511 Extruded Tube; AMS 4173, AMS QQ-A-200//8, UNS A96061, WNR 3.3211, ISO AlMg1SiCu, ASTM B221
 

Typical Properties of 6061 T6511:

• Durability: Medium
• Machinability: Acceptable
• Weldability: Very Good
• Formability: Good
• Corrosion Resistance: Very High
• Heat Treatment: Yes
   

Some Common Applications of 6061 T6511:
In electrical poles and furniture parts,
In aerospace, aviation, and high-pressure transport applications,
Including helicopter parts and many other uses.
 

Stock
6061 T6511 is produced and supplied in rod/flat and tube/profile forms.

• Rod / Flat
• Tube / Profile