AA 2024 Aluminum Alloy
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계열: 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.
성능 평가
Performance Radar
| 특성 | Rating |
|---|---|
| Strength | 5 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
성분
기계적 특성
| 인장 강도 | 407.5 MPa |
| 항복 강도 | 317.5 MPa |
| 연신율 | 11.9% |
| 경도 (로크웰) |
화학 성분
| 원소 | 비율 (%) |
|---|---|
| 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 |
구매처 AA 2024 Aluminum Alloy
링크를 통해 추가 비용 없이 수수료가 발생할 수 있습니다.
설명
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.