What are the disadvantages of aluminum?

Aluminum has several disadvantages. It is a non-magnetic material, which limits its use in applications requiring magnetic properties. Aluminum is also less dense than many other metals, making it less suitable for heavy-duty applications. It can be toxic in certain forms, such as aluminum salts, and has been linked to health issues when ingested in large amounts. Additionally, aluminum's low melting point can be a disadvantage in high-temperature environments. Lastly, the production process of aluminum is energy-intensive and can contribute to environmental pollution.