The 2024-T3511 aluminum alloy is a high-strength engineering material belonging to the Al-Cu (aluminum-copper) series and is widely used especially in the aerospace and defense industries. This alloy stands out with its high strength, good fatigue resistance, and relatively balanced mechanical properties. The T3511 temper indicates a condition in which stress relieving has been applied and controlled stretching has been performed; this increases the dimensional stability of the material and provides advantages especially in applications requiring precision machining.

Corrosion resistance is one of the aspects where the 2024-T3511 alloy is relatively weak. Due to its high copper content, its resistance to oxidation under natural atmospheric conditions is low. Therefore, it generally needs to be protected with surface treatments such as alclad coating, anodizing, or painting. In comparison with the 7075 alloy, although its corrosion resistance is at a similar level, it is significantly lower than that of the 6061 alloy. For this reason, surface protection measures must definitely be taken in outdoor applications.

In terms of mechanical strength, 2024-T3511 is quite strong and is known for its high tensile strength. While it provides higher strength compared to the 6061-T6 alloy, it has slightly lower values than the 7075-T6 alloy, but it may exhibit better fatigue performance. Its behavior under vibration is quite good, and for this reason, it is preferred in aircraft fuselages, wing structures, and fastening elements. In addition, its high fatigue strength makes this alloy stand out in environments where dynamic loading is present.

In terms of machinability, 2024-T3511 shows very good performance and is suitable for machining processes. However, its bending and forming capability is limited, especially in the T3511 temper, and there is a risk of cracking during cold forming. In this respect, 5052 or 3003 alloys provide better formability. In addition, its weldability is weak; fusion welding methods are generally not recommended, and instead, mechanical fastening or riveting is preferred.

This alloy is used primarily in aerospace, defense, space, automotive racing applications, and engineering structures that require high performance. Aircraft fuselage panels, wing components, and structural parts are typical application areas of this alloy. Thanks to the combination of high strength, low weight, and good fatigue resistance, it is safely preferred in critical applications. However, during use, corrosion protection and appropriate design criteria must definitely be taken into consideration.

MATERIAL COMPOSITION STANDARDS

2024 T3511 is available under the following standards.
• 2024 T3511 Cold Drawn Bar; AMS QQ-A-225/6, AMS 4165, EN 2633, ASTM B211
 

Characteristic Properties for 2024 T3511: 

• Strength: Good
• Machinability: Above Average
• Weldability: Moderate (Spot welding is the preferred method)
• Formability: Poor
• Corrosion Resistance: Moderate
• Heat Treatment: Yes
   

Common Applications for 2024 T3511: 
Aircraft wings in the aerospace sector,
Valve systems,
Also used in computer parts.
 

STOCK
2024 T3511 is supplied in bar and flat bar forms.

• Bar / Flat Bar