Aluminum alloy casings mostly use 6 series alloys, and the aluminum content is generally above 80%, and most are between 85% and 90%.
Chemical composition table of commonly used aluminum alloy grades
AL1/series pure aluminum
Series 1 is pure aluminum, containing more than 99% aluminum. The lowest aluminum content of this series, such as 1050, has an aluminum content of 99.5%. The production process is relatively simple and the price is relatively cheap. It is currently the most commonly used series in conventional industries.
AL-Cu2/series aluminum copper alloy
The 2 series aluminum alloy represents 2024 and 2A12 (ie LY12). Series 2 aluminum plates are characterized by higher hardness, high strength and good cutting performance, but poor corrosion resistance. Among them, copper has the highest content, about 3-5%. Series 2 aluminum materials are aviation aluminum materials and are more expensive.
AL-Mn3/series aluminum-manganese alloy
The 3 series aluminum alloys mainly represent 3003 and 3A21. Series 3 is made of manganese as the main component. The content is between 1.0-1.5. It is a series with good anti-rust function. It is used for processing parts and components that require good formability, high corrosion resistance and good weldability.
AL-Mg5/series aluminum-magnesium alloy
The 5 series aluminum alloy represents 5052, 5083, and 5A06. The 5 series aluminum belongs to the more commonly used alloy aluminum plate series. The main element is magnesium, and the magnesium content is between 3-5%. It can also be called aluminum-magnesium alloy. The main features are low density, high tensile strength, high elongation and good fatigue strength, but it cannot be strengthened by heat treatment. The weight of aluminum-magnesium alloy is lower than that of other series under the same area, and it is also widely used in conventional industries.
AL-Mg-Si6/series aluminum magnesium silicon alloy
The 6 series aluminum alloys represent 6061, 6063, and 6082, which mainly contain magnesium and silicon. Series 6 is a heat treatment-strengthenable alloy with good formability, weldability, and machinability. It also has medium strength and can maintain good operability after annealing. It is suitable for corrosion and oxidation resistance requirements. High application. Good workability, easy coating and good processability.
AL-Zn7/series aluminum-zinc alloy
The 7 series aluminum alloy represents 7075, which mainly contains zinc. It also belongs to the aviation series. It is an aluminum-magnesium-zinc-copper alloy. It is a heat-treatable alloy. It is a superhard aluminum alloy and has good wear resistance. It also has good weldability, but has poor corrosion resistance. Among this series, 7075-T651 aluminum alloy is particularly top-grade and is known as the best product among aluminum alloys. It has high strength and is far superior to any mild steel. This alloy also has good mechanical properties and anodic reaction.