The material composition is relatively complex, involving different alloy grades of aluminum alloys. It is difficult to effectively and cost-effectively classify and process these materials according to the alloy series.
Although automotive parts made of aluminum alloys are all high-quality alloys, when various alloys are mixed together and re-melted, they will contaminate each other, reducing the quality of the recycled aluminum alloy and making it unusable to make automotive aluminum alloys.
The metallic element of an alloy in some series will be an impurity element in another alloy.
