AA 2524 Aluminum Alloy
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Family: Aluminum Alloy
Copper Alloy (Al-Cu). AA designation 2524.
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Tensile Strength | 493.5 MPa |
| Yield Strength | 336.6 MPa |
| Elongation | 24.3% |
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Al | 93.514 |
| Cr | 0.01 |
| Cu | 4.4 |
| Fe | 0.05 |
| Mg | 1.387 |
| Mn | 0.619 |
| Si | 0.03 |
| Ti | 0.03 |
| Zn | 0.008 |
Where to Buy AA 2524 Aluminum Alloy
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Description
AA 2524 is a damage-tolerant aluminum-copper alloy with optimized composition and microstructural control to achieve superior fatigue crack growth resistance compared to 2024-T3. It contains 4.0–4.5% copper with tightly controlled iron and silicon levels to minimize coarse constituent particles that initiate fatigue cracks. The alloy is used in wide-body commercial aircraft fuselage skin panels where long fatigue life and damage tolerance are paramount.