Aluminum Alloy In Aircraft Grade

Aluminum alloy in aircraft grade is made of aluminum, they are mainly 200 series, 6000 series and 7000 series aluminum alloy. Among them, the 7000 series aircraft grade aluminum alloy has a longer service life than ordinary aluminum alloys due to its high hardness. However, the use range of aircraft aluminum alloys is not large, common aluminum alloys are used. The aluminum alloy aircraft grade is also known as activation aluminum alloy, aerospace aluminum alloy and airplane aluminum alloy, which is a high end product of aluminum processing enterprise.

The biggest difference between aluminum alloy in aircraft grade materials and ordinary aluminum alloy is the mechanical properties. The 7000 series aluminum alloy has the highest hardness value among all aluminum alloys, so it is suitable for the aerospace field. The 6000 series aluminum alloy has medium hardness, which can basically meet the needs of production and life. The higher the hardness of the aluminum alloy, the more difficult it is to form, so the cost of aircraft grade aluminum alloy is very high. Our common 6000 series aluminum alloys (the most commonly used 6063, 6061, etc.) have medium hardness, are easy to extrude and form, and have low production costs.

The third difference is that aluminum alloy in aircraft grade cannot be welded, and can only be connected by other methods. And ordinary buildings, industrial aluminum alloy can be welded, so the application field is wider. The fourth difference is also very big, which is corrosion resistance. The corrosion resistance of 7000 series aluminum alloys is very poor, so the surface must be treated with a special process, which increases the cost. The 6000 series aluminum alloy itself has certain corrosion resistance. If the surface is anodized, the corrosion resistance can be greatly improved.