What is 2124 Aluminum Plate？
2124 aluminum plate is a high-strength AL-Cu alloy from the 2000 series, developed as a refined version of 2024 alloy with improved purity and structural integrity. It offers outstanding strength, fracture toughness, and fatigue resistance, making it ideal for aerospace structural components and high-stress industrial parts. The alloy also provides excellent machinability, which allows for precise fabrication of complex shapes. However, its corrosion resistance and anodizing performance are relatively limited, so additional surface protection or coating is often recommended for long-term durability. Common tempers include T351 and T851, widely used in aircraft frames, fuselage panels, and precision-engineered parts that demand superior mechanical performance.
Specification of 2124 Aluminum Plate
| Alloy |
2124 |
| Temper |
O, T3, T4, T351, T851 |
| Thickness |
6 mm – 300 mm (customizable) |
| Width |
500 mm – 2650 mm |
| Length |
500 mm – 12000 mm (custom cut available) |
| Surface Finish |
Mill finish, anodized, coated, or customized surface treatment |
| Standard |
ASTM B209, AMS-QQ-A-250/29, AMS 4101, AMS-STD-2154, GB/T 3880 |
| Application |
Aerospace structures, aircraft frames, fuselage panels, mechanical components, and high-strength structural parts |
2124 Aluminum Plate Stock
| Alloy |
Temper |
Thickness (mm) |
Width (mm) |
Length (mm) |
Surface Finish |
Standard |
| 2124 |
T851 |
6.0 |
1500 |
3000 |
Mill Finish |
ASTM B209 / AMS 4101 |
| 2124 |
T851 |
12.7 |
1525 |
3050 |
Mill Finish |
AMS-QQ-A-250/29 |
| 2124 |
T351 |
20.0 |
1250 |
2500 |
Mill Finish |
ASTM B209 |
| 2124 |
T851 |
25.4 |
1500 |
3000 |
Mill Finish |
AMS 4101 |
| 2124 |
T851 |
38.1 |
1525 |
3050 |
Anodized |
ASTM B209 |
| 2124 |
T351 |
50.0 |
2000 |
4000 |
Mill Finish |
AMS 4101 |
| 2124 |
T851 |
75.0 |
2000 |
4000 |
Mill Finish |
ASTM B209 |
| 2124 |
T851 |
100.0 |
2000 |
4000 |
Coated |
AMS-STD-2154 |
| 2124 |
T851 |
150.0 |
2000 |
4000 |
Mill Finish |
ASTM B209 |
| 2124 |
T851 |
200.0 |
2000 |
4000 |
Mill Finish |
AMS 4101 |
Stock information is updated in real time, please contact ZGGDMETAL for the latest information and quotation. Quick Quote.
What are 2124 Aluminum Plate used for?
2124 aluminum plates are primarily used in the aerospace industry where high strength, fracture toughness, and fatigue resistance are essential. They are widely applied in aircraft structural components such as fuselage frames, wing ribs, bulkheads, and control system parts. Due to their excellent machinability and mechanical performance, 2124 plates are also suitable for precision-engineered components, high-stress industrial structures, and aerospace tooling blocks. In general, they are chosen for applications that require superior mechanical reliability under cyclic loading and where weight reduction is critical.
What are the characteristics of 2124 Aluminum Plate?
2124 aluminum plate is a high-strength aluminum-copper alloy known for its excellent mechanical properties and structural integrity. It offers superior fracture toughness, high fatigue strength, and good machinability, making it suitable for critical aerospace applications. Compared with 2024 alloy, 2124 provides higher purity, better consistency, and improved performance in thicker sections. The alloy maintains excellent strength-to-weight ratio and stability after heat treatment, especially in tempers like T351 and T851. However, its corrosion resistance and anodizing response are relatively limited, so additional protective coatings or surface treatments are often required for enhanced durability in harsh environments.
