AA 2124 Aluminum Alloy
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系列: Aluminum Alloy
Copper Alloy (Al-Cu). AA designation 2124.
Overview
AA 2124 is a high-purity variant of 2024 in which iron and silicon impurities are tightly controlled to raise fracture toughness and fatigue performance in thick plate. It keeps the 3.8–4.9% copper base with magnesium and manganese and is normally used in the T851 temper. The cleaner microstructure suits it to aircraft bulkheads, fuselage frames, and other structural components where superior damage tolerance is the priority.
性能评级
Performance Radar
| 性能 | Rating |
|---|---|
| Strength | 5 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
成分
机械性能
| 抗拉强度 | 420.5 MPa |
| 屈服强度 | 252.0 MPa |
| 伸长率 | 86.5% |
| 硬度（洛氏） |
化学成分
| 元素 | 百分比 (%) |
|---|---|
| Al | 93.13 |
| Cr | 0.06 |
| Cu | 4.4 |
| Fe | 0.18 |
| Mg | 1.46 |
| Mn | 0.64 |
| Ni | 0.015 |
| Si | 0.2 |
| Ti | 0.01 |
| Zn | 0.25 |
购买渠道 AA 2124 Aluminum Alloy
说明
AA 2124 is a high-purity variant of 2024 with tighter control of iron and silicon impurities, resulting in improved fracture toughness and fatigue performance in thick plate form. The alloy contains 3.8–4.9% copper with magnesium and manganese, and is typically used in the T851 temper. Applications include aircraft bulkheads, fuselage frames, and structural components requiring superior damage tolerance.