What is the Difference Between Aluminium and Copper?

The main differences between aluminum and copper wires lie in their conductivity, weight, flexibility, and cost. Here is a comparison of the two:

Aluminum:

• Has 61% of the conductivity of copper.
• Weighs about 30% less than copper.
• More flexible than copper, making it easier to wind in production processes.
• Lower current carrying capacity (by about 40%) and greater resistance compared to copper.
• Less expensive than copper, making it more desirable for large projects requiring extensive wiring.
• Suitable for use in power transmission lines and overhead lines.
• Can be more labor-intensive due to its less flexible nature.

Copper:

• Stronger than aluminum and expands less.
• Better conductivity than aluminum, requiring smaller conductors to transmit power loads.
• More durable and performs better than aluminum wiring.
• Higher current carrying capacity compared to aluminum.
• Has a lower resistivity, which means a larger aluminum wire is needed to carry the same amperage as a smaller copper wire.

In some cases, the choice between aluminum and copper wires comes down to individual preferences and the specific requirements of a project. Factors such as cost, weight, flexibility, and conductivity should be considered when deciding which type of wire to use.

Comparative Table: Aluminium vs Copper

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

Aluminum has a lower current carrying capacity and greater resistance compared to copper. It is generally more inexpensive and lighter, but it is also less flexible and more labor-intensive. Both materials have comparable strength and conductivity, but copper is the more traditional choice for electrical wiring due to its higher conductivity and lower resistance.