AA2024 High Strength Aluminum Alloy
AA2024 is a high-strength aluminum alloy in the Al-Cu-Mg series, known for its heat treatability. It is commonly used in aircraft components and other high-load parts operating below 150°C.
Technical Specifications
Overview
High-Strength Aerospace Alloy
AA2024 is a high-strength aluminum alloy from the Al-Cu-Mg series, engineered for demanding structural applications. It offers excellent mechanical properties, including high tensile strength, and is suitable for heat treatment to enhance its performance. While it is widely used in aerospace components like airframes, ribs, and spars, it requires specific surface treatments like anodizing or cladding to optimize corrosion resistance.
Mechanical Properties
Tensile Strength
390 MPa
Tensile Strength (σb)
Yield Strength
245 MPa
Yield Strength (σ0.2)
Chemical Composition
Chemical Composition
| Element | Content (%) |
|---|---|
| Copper (Cu) | 3.8 - 4.9 |
| Magnesium (Mg) | 1.2 - 1.8 |
| Manganese (Mn) | 0.30 - 1.0 |
| Silicon (Si) | 0.50 |
| Iron (Fe) | 0.50 |
| Chromium (Cr) | 0.10 |
| Zinc (Zn) | 0.25 |
| Aluminum (Al) | Remainder |
Technical Characteristics
Processing Characteristics
- Heat treatable for enhanced strength
- Good spot welding performance
- Moderate plasticity in quenched state
- Requires surface protection (anodizing/cladding) for corrosion resistance
Applications
- Primary Applications
- Aerospace AirframesWing RibsWing SparsAircraft SkinsRivetsHigh-load structural components
Standards
Standard
JIS H4000-1999
