



Plates
Sheets
Rod/Round Bar/Flat Bar
Tube/Extrusions/Profile
2024
AMS QQ-A-225/6 / AlCu4Mg1 / 2024 / T8
Chemical Properties | % Value |
Silicon (Si) | 0,00 - 0,50 |
Chromium (Cr) | 0,00 - 0,10 |
Manganese (Mn) | 0,30 - 0,90 |
Magnesium (Mg) | 1,20 - 1,80 |
Copper (Cu) | 3,80 - 4,90 |
Titanium (Ti) | 0,00 - 0,15 |
Iron (Fe) | 0,00 - 0,50 |
Zinc (Zn) | 0,00 - 0,25 |
Aluminium (Al) | Balance |
Physical Properties | Value |
Density | 2.78 g/cm³ |
Melting Point | 502 °C |
Thermal Expansion | 23 µm/m.°C |
Modulus of Elasticity | 73.1 GPa |
Thermal Conductivity | 121 W/m.K |
Electrical Resistivity | 30% IACS |
Mechanical Properties | Value |
Proof Strength | 440 MPa |
Yield Strength | 530 MPa |
Shear Strength | 300 MPa |
Elongation A50 mm | 5% |
Hardness | 140 HB |
2024 T8 aluminum alloy is renowned for its high strength, excellent fatigue resistance, and good machinability. Its copper-heavy composition enhances its mechanical performance, while the T8 temper indicates that the alloy has undergone solution heat treatment, mechanical processing, and artificial aging. These processes make the alloy well-suited for applications requiring high strength and stability.
This alloy is widely used in aerospace, automotive, defense, and industrial machinery sectors. It is particularly employed in high-strength applications such as aircraft body parts, engine components, and chassis elements. 2024 T8 is compatible with anodizing, which forms a protective oxide layer to improve corrosion resistance and provide an aesthetic finish. However, its copper content requires careful handling during the anodizing process. Its weldability is limited, with mechanical fasteners or specialized welding methods often being the preferred options.
In terms of bending and forming, 2024 T8 aluminum alloy offers limited formability due to its high strength. Complex shaping processes can be challenging but can yield satisfactory results with proper techniques. Its fatigue resistance and mechanical stability make it highly reliable in high-vibration environments and dynamic load applications. These attributes make it an excellent choice for applications demanding durability and long service life.
The corrosion resistance of this alloy is moderate, and additional surface treatments or protective coatings are recommended for use in corrosive environments. Advantages of this alloy include high strength, excellent fatigue resistance, and machinability, while its disadvantages include limited weldability, reduced formability, and moderate corrosion resistance. These characteristics make 2024 T8 aluminum alloy ideal for high-performance projects where lightweight and durability are crucial.
ALLOY DESIGNATIONS
Aluminium alloy 2024 T8 has similarities to the following standard designations and specifications:
As extruded round bar: AMS QQ-A-200/3, ASTM B221, DIN 3.1354
Choosing Factors for 2024 T8
- Strength: High
- Machining: Good
- Weldability: Average (Spot welding is the best choice)
- Formability: Poor
- Corrosion Resistance: Poor
- Heat Treating: Yes
Some Well-Known Applications for 2024 T8
Engine cowl skins,
In hydraulic valves,
It is also used in aircraft fittings.
SUPPLIED FORMS
Alloy 2024 T8 is supplied in round and flat bar forms.
- Round/Flat Bar