AA 2024 Aluminum Alloy
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Семейство: Aluminum Alloy
Copper Alloy (Al-Cu). AA designation 2024.
Overview
AA 2024 is the most widely used of the aluminium–copper alloys, built on 3.8–4.9% copper with magnesium and manganese and heat-treated to very high strength in the T3 or T351 temper. Its excellent strength-to-weight ratio and good fatigue resistance made it the primary skin material for aircraft fuselages, wings, and structural frames. The trade-off is a susceptibility to stress-corrosion cracking in certain environments, which is why it is frequently used in clad form or with protective finishing on airframe structure.
Рейтинги характеристик
Performance Radar
| Свойство | Rating |
|---|---|
| Strength | 5 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
Состав
Механические свойства
| Предел прочности на растяжение | 407.5 MPa |
| Предел текучести | 317.5 MPa |
| Относительное удлинение | 11.9% |
| Твёрдость (по Роквеллу) |
Химический состав
| Элемент | Процентное содержание (%) |
|---|---|
| B | 0,661 |
| V | 0,015 |
| Al | 93,057 |
| Bi | 0,5 |
| Cr | 0,07 |
| Cu | 4,35 |
| Fe | 0,4 |
| Li | 2,845 |
| Mg | 1,5 |
| Mn | 0,6 |
| Ni | 0,1 |
| Pb | 0,035 |
| Pt | 0,05 |
| Si | 0,43 |
| Sn | 0,055 |
| Ti | 0,05 |
| Zn | 0,198 |
| Zr | 0,01 |
Где купить AA 2024 Aluminum Alloy
Ссылки могут приносить комиссию без дополнительных расходов для вас.
Описание
AA 2024 is the most widely used aluminum-copper alloy, containing 3.8–4.9% copper with magnesium and manganese additions, achieving very high strength through T3 or T351 temper heat treatment. It offers an excellent strength-to-weight ratio and good fatigue resistance, though it is susceptible to stress corrosion cracking in certain environments. The alloy is the primary material for aircraft fuselage skins, wings, and structural frames.