Everything You Need To Know About Aluminum Alloys In Aerospace

Adolf Galland, the late German pilot once said, “Flying is more than a sport and more than a job; flying is pure passion and desire’ which fills a lifetime” To all such flying heroes and travel fanatics, the aerospace industry is key to accomplish the goal with utmost safety and standards. Besides, with the spike in demand for air travel and shortage of new aircrafts orders, the aerospace industry seems to be in running order in the near future.

However, to make it possible for aerospace to develop high-performance jet engines and airframes, there is a need for superior alloys and their composite. Grade of 7075 aluminum is said to be substantially used in the arena because of high strength, corrosion resistance, and other suitable features. Apart from this, there are several other aluminum alloys that mount to 75-80% of modern aircraft. 

Historical Association Between Aluminium And Aerospace Industry

There is a fortunate connection between aerospace and aluminum. It was in the 19th century, when Count Ferdinand Zeppelin, the inventor of Zeppelin rigid airships used aluminum in manufacturing the iconic pieces. Since then, there is a high demand for this chemical metal and its alloys in developing aircraft. 

Some of the ancient events that prove the classic significance of aluminum in aerospace are the Golden Age of Aviation, World War I, World War II, and when the Wright brothers made their first human flight. Since the end of the war and the development of the modern era, aircraft engineers have been transparent about the integrity of aluminum in the field.

Stainless steel, nickel, copper, zinc, and their alloys play a crucial role in the growth of the aircraft industry. Furthermore, the reasons that make aluminum alloys best in this arena are their lightweight, ability to carry heavy loads, corrosion resistance, and high strength. Out of all 7075 aluminum alloy top the list because of its excellent mechanical properties. This is why it is regarded as standardized to be used in the aerospace industry.

List Of Commonly Harnessed Aluminium Alloys In Aerospace

Fact that aircraft are high in demand due to one or other reasons, there is a need for proper selection of the material in making jumbo jets. Therefore, based on the consideration that aircraft has to be quite durable, strong, and resistant to fatigue, the below-mentioned list of aluminum alloys makes up most of the industry.


2024 aluminum is popularly used in aerospace for the creation of internal structures, aircraft skins, and cowls. Even though it is strong and tough, its poor corrosion resistance does not make it fit for external jet engine design. 


2024, one of the highly used grades in the manufacturing of aircraft possesses higher fatigue resistance and high tensile strength. This makes it perfect to use in sheet forms for wings and fuselage.


It is naturally quite excellent in resisting corrosion. This being the reason, 5052 aluminum grade is widely used in making fuel tanks.


Light-weight yet strong 6061-grade aluminum is used in light or homemade aircraft. 


As mentioned already 7075 aluminum grade comprises zinc as a primary element. The features such as fatigue resistance and high strength make it the top choice in the field. 7075 aluminum sheets are also extensively used to strengthen aircraft structures. 

Future Significance Of Aluminum Alloys In Aerospace

Concerning the successful history and fruitful present, it is beyond the shadow of a doubt that demand for incredible aluminum alloys in aerospace will witness a spike. Just like 7075 aluminum is markedly harnessed in the industry because of high strength and corrosion resistance, the developing countries can come forwards with further innovation comprising the same excellence to comply with the growing demand.