Here is the table showing the classification of aluminum grades and their characteristics in English:
| Grade | Characteristics |
|-------|-----------------|
| 1xxx | Pure aluminum, excellent electrical conductivity and corrosion resistance, low strength |
| 2xxx | Copper as the main alloying element, high strength, good heat resistance, but poor corrosion resistance |
| 3xxx | Manganese as the main alloying element, moderate strength, good formability and corrosion resistance |
| 4xxx | Silicon as the main alloying element, low melting point, often used in welding materials and casting alloys |
| 5xxx | Magnesium as the main alloying element, good corrosion resistance and weldability, moderate strength |
| 6xxx | Magnesium and silicon as the main alloying elements, good formability, weldability, and corrosion resistance, moderate strength |
| 7xxx | Zinc as the main alloying element, very high strength, but poor corrosion resistance |
| 8xxx | Other elements (e.g., lithium) as the main alloying elements, used for special applications such as aerospace |
These grade classifications and characteristics are suitable for different application scenarios. Selecting the appropriate grade can meet specific requirements.
