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The 2024 T81 aluminum sheet is a high-performance, aerospace-grade alloy known for its excellent strength-to-weight ratio and reliable durability. We supply this material in a wide range of sizes and specifications to meet different engineering and manufacturing needs.
The 2024 T81 aluminum alloy is a high-strength copper-aluminum material engineered for applications where structural performance and load-bearing capability are essential. In the T81 temper, it undergoes solution heat treatment, stretching, and artificial aging, resulting in impressive tensile strength, stable mechanical properties, and excellent workability. Its smooth surface & good machinability make it well suited for operations such as milling, drilling, and precision cutting.
Because 2024 alloy has inherently low corrosion resistance, aerospace applications typically use it in Alclad form, which enhances both corrosion resistance and fracture toughness. With its strong combination of strength, durability, and processing performance, 2024 T81 aluminum plate is widely regarded as a top choice for high-demand structural components.
1.High Structural Strength
This copper-aluminum alloy sheet offers exceptional structural strength, making it ideal for applications that demand superior load-bearing performance.
2.Outstanding Specific Strength
Lightweight yet highly durable, it is widely used in aerospace structures, new-energy vehicle components, and precision-engineered parts.
3.Excellent Machinability
The alloy supports a variety of processing methods, including forming, cutting, drilling, and general machining, providing versatility for diverse manufacturing needs.
4.Superior Fatigue Performance
It maintains reliable performance under repeated loads and cyclic stress, ensuring durability in demanding operating environments.
| Product Name | 2024-T81 Aluminum Sheet |
| Thickness | 0.5–150 mm |
| Width | 500–2500 mm |
| Length | 1000–6000 mm（Customization supported） |
| Standard | ASTM B209, AMS 4033 / QQ-A-250/4, EN 485-2, ISO AlCu4Mg1 |
| MOQ | 1–3 tons |
| Surface Finish | Anodized, Alclad, Brushed, Polished, PVC coated |
| Processing Services | Cutting, CNC machining, bending, drilling, coating, |
| Ultimate Tensile Strength (UTS) | 485–510 MPa |
| Yield Strength (0.2% Proof) | 440–460 MPa |
| Elongation (%) | 5–7% |
| Shear Strength | 295–300 MPa |
| Fatigue Strength | 125–130 MPa |
| Young’s Modulus | 71–72.4 GPa |
| Density | 2.78 g/cm³ |
The 2024 T81 aluminum sheet is often treated with aluminum alloy cladding or anodizing to enhance its overall corrosion resistance. It is commonly supplied in clad forms, such as AMS 4040 or AMS 4041, which improve fracture toughness for demanding applications.
