AA 7449 Aluminum Alloy
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Família: Aluminum Alloy
Zinc Alloy (Al-Zn). AA designation 7449.
Classificações de desempenho
Performance Radar
| Propriedade | Rating |
|---|---|
| Strength | 6 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
Composição
Propriedades mecânicas
| Resistência à tração | 554.5 MPa |
| Limite de elasticidade | 500.0 MPa |
| Alongamento | 13.5% |
| Dureza (Rockwell) |
Composição química
| Elemento | Percentagem (%) |
|---|---|
| Al | 87,78 |
| Cr | 0,05 |
| Cu | 1,7 |
| Fe | 0,15 |
| Mg | 2,15 |
| Mn | 0,2 |
| Si | 0,12 |
| Ti | 0,125 |
| Zn | 8,1 |
| Zr | 0,2 |
Onde comprar AA 7449 Aluminum Alloy
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Descrição
AA 7449 is a high-strength, high-toughness aluminum alloy (~8.4% Zn, 1.8–2.4% Mg, 1.4–2.1% Cu) developed specifically for thick plate applications in primary aircraft structure where improved toughness over 7150 and 7055 is required in overaged T7651 temper. The high zinc content provides high strength potential while the tightly controlled Cu/Mg ratio optimizes the corrosion resistance and toughness balance. It is used in upper wing covers of wide-body commercial aircraft.