| Grade | Applications | Features |
| 1 Series | Mainly used in products that do not require high strength, such as automotive heat insulation panels, billboards, building exterior decoration, wall decoration, electrical lighting, heat exchangers, kitchen utensils, conductor materials, chemical equipment, electronic devices, inland ship equipment, Various containers (wine tanks, pressure tanks, tea stoves, etc.), instruments and meters, signs (equipment signs, road signs, motor vehicle license plates, etc.), hardware cookware, and machine parts with little stress. | Industrial pure aluminum sheet has good elongation and tensile strength, good plasticity, corrosion resistance, electrical conductivity and thermal conductivity. The production process is relatively simple, the production technology is relatively mature, and the price has a huge advantage over other high-grade aluminum alloys. The disadvantage is that the strength is low, it cannot be strengthened by heat treatment, the machinability is not good, it is not easy to braze, and it is easy to be deformed by compression. |
| 2 Series | Mainly used in aircraft structure (such as skin, etc.), aerospace, weapons, engines, pistons, automobile bodies, ship hulls and stress components. | Also known as duralumin, the main alloying element is copper. It has high strength and good machinability, has certain heat resistance, and can be heat treated. The disadvantage is that it has poor corrosion resistance. |
| 3 Series | It is mainly used in the application field of industrial pure aluminum plate and other fields with higher hardness requirements. It is often used in kitchenware, food and chemical storage and transportation, heat sinks, home appliances (such as air conditioners, refrigerators, washing machines, etc.) | Also known as rust-proof aluminum plate, the main alloying element is manganese. The strength is higher than that of industrial pure aluminum sheet, and the formability, weldability and corrosion resistance are good. Since it cannot be strengthened by heat treatment, cold working is often used in the process to improve its mechanical properties. |
| 5 Series | It is mostly used in architectural decoration, pressure vessels, ship structures and offshore facilities, aircraft fuel tanks, automobile fuel tanks, automobile gas tanks, containers, etc. | It is a high-grade aluminum alloy sheet, and the main alloying element is Mg. Has good formability, corrosion resistance, weldability, fatigue strength and moderate static strength. It cannot be strengthened by heat treatment, but the surface can be polished, which is relatively beautiful and resistant to marine climates. |
| 6 Series | Mainly used in construction, ships, rail vehicles, electronics, electrical appliances, consumer durables and other fields. | The main alloying elements are magnesium and silicon, with medium strength, good corrosion resistance, good weldability and oxidation effect |
| 7 Series | It is mainly used as the preferred material for aerospace equipment, and is also widely used in various machinery, mold and other processing and production fields. | "Super hard aluminum alloy series, the main alloying elements are zinc, magnesium and copper. The representative grades are 7050 and 7075, the heat treatment effect is particularly good, the deformed aluminum alloy plate with super high strength, after solid solution treatment.
Good plasticity, good mechanical properties, wear resistance and fatigue resistance. The disadvantage is that the welding performance is poor, there is a tendency to stress corrosion cracking, and it needs to be protected by aluminum cladding or other deal with" |
| 8 Series | The aluminum sheet, which is mainly used as a bottle cap, is also used in the radiator, and most of the applications are aluminum foil. | It belongs to aluminum-lithium alloy, and the main component is lithium, because lithium is the lightest metal in nature. After adding lithium element to the aluminum plate, it can effectively reduce the specific gravity of the aluminum plate while ensuring the strength of the aluminum plate. |
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