Aircraft aluminum alloy is an ultra-high-strength deformed aluminum alloy, which is currently widely used in the aviation industry. Compared with ordinary aluminum alloys, aircraft aluminum alloys have higher requirements for strength, hardness, toughness, fatigue resistance, and plasticity. Aviation aluminum alloy has good mechanical and processing properties, good plasticity after solution treatment, good heat treatment strengthening effect and has high strength and good toughness. It is an ideal aviation structural material.
Alulminum alloy 2024 is a typical duralumin alloy-Al-Mg-Cu aluminum alloy, with 4.5% copper, 0.6% manganese and 1.5% magnesium. It is of reasonable composition and good overall performance. 2024 aluminum also features high strength, a certain degree of heat resistance, can be used as working parts below 150 ℃.
When the temperature is higher than 125 ℃, its strength is higher than that of 7075 aluminum plate. The forming performance is better in the hot temper, annealing and new quenching state, and the heat treatment strengthening effect is significant, but the heat treatment process requirements are strict.
Chemical Composition
Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Zr | Ti | Standard |
2024 | 0.50 | 0.50 | 3.8-4.9 | 0.30-0.90 | 1.20-1.80 | 0.10 | 0.25 | - | 0.15 | GB/AMS/EN |
Size
Alloy | Type | Temper | Thickness(mm) | Width(mm) |
2024 | Thick plate | T351 | 4-260 | 1200-3800 |
Thin plate | T3/T4 | 0.3-0.4 | 1000-2600 |
Mechanical Properties
Alloy | Temper | Direction | Thickness(mm) | Tensile strength(mm) RM(Mpa) | Yield strength RP0.2(Mpa) | Breaking elongation A50% | Standard |
2024 thick plate | T351 | LT | 6-102 | 460-495 | 320-340 | 12.5-21.5 | AMS-QQ-A-250/4 |
2024 thin plate | T4 | - | 0.3-3.5 | 430-450 | 280-310 | 18-21 | GB/T380 EN485 ASTM B209 |
Its common tempers are T3 and T4. They have high plasticity, fatigue resistance and toughness, but have poor corrosion resistance. 2024 aluminum thick plates are mainly used on fuselages, wings, ribs, and other structural parts that require high strength.
After artificial aging, 2024 alloy has excellent comprehensive performance and high-temperature resistance. It has a small tendency to soften at high temperature and can be used for a long time at higher temperatures. It is mainly used for the skins and engines of commercial and military aircraft that often withstand high temperatures above 121 ℃.
The general resistance corrosion in 2024 is Class D. In addition to being used for structural parts of aircraft, this material is often used for truck wheels and screwdrivers.
Another application of 2024 aluminum sheet is the construction of large hydraulic manifolds. The fatigue resistance of this alloy makes it a viable candidate material due to the immense stresses and pressures exerted on the metal in the hydraulic system.
In the aviation industry, due to the low density, high strength and corrosion resistance, 2024 aluminum is the main material for aircraft structure. In recent years, as aircraft put forward higher requirements for maneuverability and speed, the aircraft itself will bear more complex load spectrum effects.
Under the simplified gust load spectrum M1 and M2, the fatigue life of the aircraft reaches about 100,000 flight cycles, indicating that the aluminum alloy 2024 has good fatigue performance and is an aerospace material that can withstand frequent tension and compression loads.
Haomei 2024 aircraft aluminum alloy has a tensile strength of 400-500MPa, and has better heat resistance and fatigue resistance.
We have the "1+1" ultra-wide and ultra-thick aluminum plate production line. Our 2024 aluminum plate has good mechanical properties, high strength, easy processing property, low density, which can be used as a light structural material.
Haomei has Aviation Material Industry Park Testing Center, with testing capabilities such as mechanical properties, bending fracture toughness, intergranular corrosion, exfoliation corrosion, fatigue testing, tissue analysis,etc.
We have close cooperation with domestic and foreign technicians, research institute and colleges, ensuring the high processing technology.
Original Source:https://www.aircraftaluminium.com/product/aircraft-aluminum-alloy-2024.html
Tags: aluminum alloy 2024 , aircraft aluminum alloy , 2024 aluminum sheet ,
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