The 2124-T6 aluminum alloy is an Al-Cu-Mg series alloy specifically developed for applications requiring high strength and improved damage tolerance. It is widely preferred in the aerospace industry, offering better fatigue resistance and crack propagation performance compared to conventional 2024 alloy due to its fine grain structure. In terms of strength, 2124-T6 provides high yield and tensile strength, making it significantly stronger than 6061-T6. However, while it offers slightly lower strength than 7075-T6, it provides better damage tolerance and machinability advantages.

In terms of corrosion resistance, 2124-T6 does not naturally have high corrosion resistance due to its copper content and is typically supported by protective coatings or anodizing. In this respect, it performs worse than 5xxx series alloys such as 5083. However, its coating capability is excellent, and when used with alclad coatings, its environmental resistance is significantly improved. This coating method is widely used in aerospace applications and greatly extends the service life of the material.

Regarding machinability, 2124-T6 demonstrates very good performance and provides stable results in machining processes. This makes it suitable for producing complex geometries. However, its bending and forming properties are limited due to the T6 temper, and forming is usually performed in softer tempers followed by aging. Compared to 2024-T3, this means lower formability.

In terms of weldability, 2124-T6 performs poorly and welding is generally not recommended. This is a significant disadvantage compared to 6061, which has excellent weldability. Additionally, its vibration and fatigue behavior is very good due to its fine grain structure, making it suitable for dynamically loaded components such as aircraft structures. Although 7075 offers higher strength, it is less resistant to fatigue crack propagation compared to 2124.

Applications primarily include aerospace and defense industries, covering high-performance engineering uses. It is commonly used in wing structures, fuselage panels, fasteners, and load-bearing structural components. Compared to 2024, 6061, and 7075 alloys, 2124-T6 stands out by offering a balanced performance, particularly in critical applications requiring damage tolerance and fatigue resistance.

MATERIAL COMPOSITION STANDARDS

2124 T6 can be produced according to the following standards:
• 2124 T6 Cold Drawn Round Bar; ASTM B211, AMS 4339, UNS A92124
• 2124 T6 Cold Drawn Tube; AMS 4087, WW-T-700/3, ASTM B211, UNS A92124
 

Characteristic Properties of 2124 T6:

• Strength: High
• Machinability: Above Average
• Weldability: Moderate (Spot welding is preferred)
• Formability: Low
• Corrosion Resistance: Poor
• Heat Treatable: Yes
   

Well-Known Applications of 2124 T6:
Military vehicles,
Project-based aerospace applications,
Applications requiring high transverse rupture strength.
 

STOCK
2124 T6 is supplied in rod/flat bar and tube/profile forms.

• Rod / Flat Bar
• Tube / Profile