The alloy grade holds significant meaning in aluminum alloys. Let's take the 7075T651 aluminum plate grade as an example. Aluminum and aluminum alloy groups are divided into nine major categories. Among them, aluminum and aluminum alloys of series 1, 3, 5, 6, and 7 are predominant, while other series are used less frequently in practical applications.

Series 1: Pure Industrial Aluminum

2: Series 2: Aluminum-Copper Alloys

Series 3: Aluminum-Magnesium Alloys

Series 4: Aluminum-Silicon Alloys

Series 5: Aluminum-Magnesium Alloys

Six: Series 6: Aluminum Magnesium Silicon Alloy

Series 7: Aluminum-Zinc-Magnesium-Copper Alloys

8 Series: Other Alloys

9: Series 9: Backup Alloy