For different application scenarios and needs, the following factors need to be considered in the selection of aluminum alloy die-casting materials:

1. Cost: The cost of aluminum alloy is related to its constituent elements, as well as aspects such as the manufacturing process and details required. For example, ADC12, A380 and other common aluminum alloy profiles have less price fluctuations in the market and become the first choice for most aluminum alloy die-casting products.

2. Strength and hardness: Aluminum die-casting parts usually need to have high strength and hardness in order to meet their needs under the conditions of use. For example, alloys such as A380 and ADC12 have very high strength and hardness, and are especially suitable for manufacturing automotive engine parts that are subjected to high pressure.

3. Corrosion resistance: For some of the more challenging outdoor use scenarios, such as the chillers used in offshore wind farms, need to have superb corrosion resistance, when increasing the cadmium and copper content of the alloy is a more common solution. Of course, special attention needs to be paid to such an alloy on the manufacturing, machine life cycle, etc. will have a certain impact.

4. Design flexibility: More detailed parameters such as density, coefficient of thermal expansion and thermal conductivity of aluminum alloy materials will also affect the performance of the parts, and need to be adjusted according to the actual manufacturing needs.

In general, the selection of aluminum alloy die-casting material needs to consider various factors, and more detailed issues such as processing cost, machine life, performance stability, hygiene and environmental protection need to be considered when determining the material type and alloy composition. The correct choice of aluminum alloy die-casting material not only can produce high quality and high performance products, but also can improve the production efficiency and reduce the production cost.