Which material has the highest thermal conductivity?

Copper is known for having the highest thermal conductivity among the materials listed. This property makes copper an excellent conductor of heat, which is why it is often used in applications requiring efficient heat transfer, such as electrical wiring and heat exchangers. The high thermal conductivity of copper allows it to effectively absorb and distribute heat, which is a crucial characteristic in firefighting equipment and other thermal management systems.

In comparison, aluminum also has good thermal conductivity but is not as high as copper. Steel and brass have lower thermal conductivity than both copper and aluminum, which makes them less effective at conducting heat. This property of copper is particularly significant in various engineering and practical applications, emphasizing its superior capability in thermal management tasks.