What is the Difference Between Iron and Aluminum?

The main differences between iron and aluminum can be summarized in terms of their physical and chemical properties. Here are the key distinctions between the two metals:

1. Density: Iron is denser than aluminum, with a density of 7.87 g/cm³, while aluminum has a density of 2.70 g/cm³. This makes iron heavier than aluminum.
2. Melting Point: Iron has a higher melting point, starting at around 2200°F, compared to aluminum, which melts at around 1200°F.
3. Magnetism: Iron is magnetic, while aluminum is not.
4. Strength: Although aluminum is less brittle than iron when subjected to low temperatures, cast iron is considered superior in terms of compressive and tensile strength, and it can withstand high-temperature conditions better than cast aluminum.
5. Corrosion Resistance: Aluminum is more corrosion-resistant than iron.
6. Electrical Conductivity: Aluminum is a better conductor of electricity than iron.
7. Ductility and Malleability: Aluminum is more ductile than iron, and in terms of malleability, aluminum ranks second after gold.
8. Weight: Aluminum is lighter than iron, making it easier to transport and work with.

In summary, iron and aluminum have different physical and chemical properties, with iron being denser, stronger, and having a higher melting point, while aluminum is lighter, more corrosion-resistant, and a better conductor of electricity. The choice between using iron or aluminum depends on the specific requirements of the application at hand.

Comparative Table: Iron vs Aluminum

Here is a table comparing the differences between iron and aluminum:

Iron is a heavier and more durable material, while aluminum is lighter and more resistant to corrosion. Iron is prone to rust and requires more maintenance, whereas aluminum stays cooler and is more affordable. The choice between iron and aluminum depends on the specific needs and preferences for the intended application.