2124 T851 aluminum alloy is known for its high strength, excellent machinability, and durability. This alloy, belonging to the aluminum-copper class, is especially preferred in aerospace and aviation industries for high-performance applications. The T851 temper provides the 2124 alloy with high strength and stress resistance through a special hardening process. Additionally, its lightness and good machinability make it suitable for complex geometries.

2124 T851 alloy is not suitable for anodizing. Its high copper content prevents the formation of an effective oxide layer during the anodizing process. Therefore, other protective coating methods are generally preferred instead of anodizing. In terms of weldability, 2124 T851 aluminum alloy can pose challenges. The high copper content may increase the risk of cracking during welding, so proper welding techniques and filler materials are used to minimize this risk.

Regarding bending and forming, 2124 T851 aluminum alloy requires careful attention due to its high strength. However, bending operations can be successfully performed using appropriate processing techniques. This alloy can also be used in high-vibration environments. Thanks to its high durability and elastic modulus, it is safely used in engine parts, aircraft structural components, and other vibration-exposed applications.

In terms of corrosion resistance, 2124 T851 aluminum alloy is limited due to its copper content. This may restrict its use in harsh conditions such as marine and humid environments. However, corrosion resistance can be improved with suitable coatings and surface treatments. Advantages of 2124 T851 aluminum alloy include high strength, good machinability, and lightness, while disadvantages include low corrosion resistance and welding difficulties.
 

MATERIAL COMPOSITION STANDARDS

2124 T851 is available in the following standards:
• 2124 T851 Sheet; ASTM B209, AMS QQ-A-250/29, UNS A92124, AMS 4101, ISO AlCu4Mg1
 

Characteristic Properties of 2124 T851: 

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

Some Well-Known Applications for 2124 T851: 
Used in engine support structures in aircraft,
Military vehicles,
Also used in aircraft wing structures.
 

​STOCK
2124 T851 is supplied in sheet form.

• Sheet