Cast aluminum is an aluminum alloy product obtained directly through the casting process. It is to pour molten aluminum metal into a mold and solidify it to form a product of the desired shape.

Its alloy element content is usually higher than the corresponding deformed aluminum alloy. This material has good casting properties and can produce parts with complex shapes and precise dimensions. It also has the advantages of light weight, low cost, energy saving and reduced working hours.
Cast aluminium Characteristics
- Casting aluminium properties: Cast aluminum alloys have good fluidity, low shrinkage, and good surface finish, making them ideal for manufacturing complex parts. For example, aluminum-silicon (Al-Si) alloys exhibit excellent casting characteristics due to their high silicon content (4.0% to 13.0%).
- cast aluminium mechanical properties: Although cast aluminum alloys are generally lower in strength than wrought aluminum alloys, they still have high mechanical strength and good corrosion resistance. For example, aluminum-copper (Al-Cu) alloys have good strength and heat resistance at high temperatures and are suitable for automotive engine parts.
- Cast aluminium application areas: cast aluminum alloys wide use in aviation, automobiles, construction and other fields. For example, in the automotive industry, it uses to manufacture components such as cylinder heads, gearbox housings, pistons, etc. It can reduce the weight by about 40-60% compared to traditional cast iron parts.
- Economical efficiency: Cast aluminum alloys widely use in industry due to their low cost and efficient production characteristics. For example, about 20%-30% of the world’s aluminum products are used in casting processes.
Cast aluminium: main alloy types
Casting aluminum alloys mainly include the following types:
- Aluminum-silicon (Al-Si) alloy: This alloy has good fluidity and mechanical properties and is one of the most common types of cast aluminum alloys.
- Aluminum-copper (Al-Cu) alloy: This alloy has excellent strength and heat resistance at high temperatures and is suitable for engine parts.
- Aluminum-zinc (Al-Zn) alloy: This alloy has good corrosion resistance and mechanical properties and is widely used in automotive parts.
- Aluminum-magnesium (Al-Mg) alloy: This alloy has high strength and good ductility and is suitable for structural parts that require high strength and light weight.
Cast aluminium: Manufacturing process
The manufacturing process of cast aluminum alloys includes low-pressure casting, sand casting, die casting and centrifugal casting. Among them, low-pressure casting is widely used because it can produce high-quality and low-defect castings. In addition, the application of some new technologies such as TechCastTM rare earth material system further improves the fluidity, strength and quality of castings.
Cast aluminium: Environmental protection and sustainability
The production process of cast aluminum alloys is more environmentally friendly than traditional cast iron. For example, the recycling rate of aluminum is high, and the reuse of aluminum can significantly reduce greenhouse gas emissions.
In addition, the lightweight characteristics of aluminum help reduce vehicle fuel consumption and carbon emissions.
Thus, cast aluminum alloys play an important role in modern industry due to their excellent casting performance, economy and environmental protection. It not only meets the manufacturing needs of complex parts, but also promotes the development of lightweight technology, and provides important material solutions for many fields such as aerospace and automobile manufacturing.
Haichen cast aluminium die casting machine
Haichen is one Chinese die casting machine manufacturer for more than 10years. We produce both high pressure cold chamber die casting machine and hot chamber die casting machine.They have durable and highly precise features.


Haichen also produce die casting machine auxiliary equipment. Such as conveyor, vacuum machine, mold temperature controller, industrial robot, sprayer and so on.

We supply cold chamber and hot chamber die casting machine spare parts.
When you have any demand, feel free to contact us.