The 2024 T3 aluminum alloy belongs to the Al-Cu-Mg (Aluminum-Copper-Magnesium) alloy system and is a high-strength alloy from the 2000 series. The T3 temper condition is obtained by solution heat treatment followed by cold working and natural aging. As a result of this process, the alloy gains high mechanical strength and becomes a preferred material especially in aerospace applications. 2024 T3 is widely used in applications requiring a high strength-to-weight ratio and plays an important role in aircraft fuselage panels, wing structures, and structural fasteners.

In terms of strength and mechanical properties, the 2024 T3 alloy offers superior values compared to many aluminum alloys. Its tensile strength and yield strength are significantly higher than general-purpose alloys such as 6061-T6. However, although the 7075-T6 alloy provides higher ultimate strength, 2024 T3 can offer better fatigue resistance and damage tolerance. Due to these properties, 2024 T3 stands out as a reliable material especially in aerospace structures exposed to repeated loads and vibrations.

Regarding corrosion resistance and surface characteristics, the 2024 T3 alloy does not have the same natural corrosion resistance as pure aluminum or 5000 series alloys. Because of the copper content, it can be more susceptible to corrosion, especially in humid and aggressive environments. Therefore, in practical applications it is often protected by Alclad cladding, anodizing, or various surface coatings. With proper surface preparation, it shows good compatibility with paints and protective coatings, significantly extending its service life.

In terms of machinability, bendability, and vibration behavior, the 2024 T3 alloy provides good machinability and stable results in machining processes. However, due to its high strength, bending operations require careful design and appropriate bend radii. Its bending capability is more limited compared to more ductile alloys such as 5052. On the other hand, it exhibits good fatigue resistance under vibration, which makes it suitable for structures such as aircraft components that operate under continuous vibration.

Regarding weldability and applications, the 2024 T3 alloy is generally not considered suitable for welding because strength loss and cracking may occur in the weld zone. Therefore, joints are usually made using riveting or mechanical fastening methods. Nevertheless, due to its high strength-to-weight ratio, it plays a significant role in aerospace, defense, space, automotive, and high-performance sporting equipment industries. It is widely used particularly in aircraft wing structures, fuselage panels, and structural fasteners.

STANDARDS OF MATERIAL COMPOSITION
2024 T3 can be supplied in accordance with the following standards.
• 2024 T3 Extrusion Round Bar; AMS QQ-A-200/3, AMS 4152, ASTM B221
• 2024 T3 Sheet; AMS QQ-A-250/4, AMS 4037, AIR 9048-110, WS 3.1354, ASTM B209
• 2024 T3 Plate; AMS QQ-A-250/4, AMS 4037, AIR 9048-110, WS 3.1354, ASTM B209
• 2024 T3 Tube; WW-T-700/3, AMS 4086, ASTM B211
• 2024 T3 Alclad Sheet; AMS QQ-A-250/5, AMS 4041, AIR 9048-140, ASTM B209, BSL 109, WS 3.1364, EN 2090
 

Characteristic Properties for 2024 T3:

• Strength: Very good
• Machinability: Good
• Weldability: Moderate (Spot welding is the best option)
• Formability: Poor
• Corrosion Resistance: Fair
• Heat Treating: Yes
   

Some Well-Known Applications for 2024 T3:
Aircraft seat beams,
In drive shaft structures,
Also used in aircraft seat support rails.
 

STOCK
2024 T3 is supplied in plate/sheet, sheet, bar / flat bar, and tube / profile forms.

• Plate / Sheet
• Sheet
• Bar / Flat Bar
• Tube / Profile