Thermal and Electrical Conductivity Properties of Aluminium Extrusion Sections

  • By:Naview
  • Date:2024-04-30

Aluminium extrusion is a versatile metalworking process that creates complex shapes with exceptional precision and surface finish. Aluminium extrusion sections are widely used in various industries, including automotive, aerospace, construction, and electronics, due to their unique combination of strength, lightweight, and corrosion resistance. Among the key properties that make aluminium extrusions suitable for these applications are their thermal and electrical conductivity characteristics.

Thermal Conductivity

High Thermal Conductivity

Aluminium extrusions possess high thermal conductivity, which allows them to efficiently conduct heat. This property is essential in applications where efficient heat transfer is crucial, such as heat sinks, cooling systems, and electronic components.

Heat Dissipation

The high thermal conductivity of aluminium extrusions enables them to dissipate heat effectively. This makes them suitable for use in components that generate heat, such as electronic devices and automotive engines. By efficiently dissipating heat, aluminium extrusions help prevent overheating and maintain optimal operating temperatures.

Electrical Conductivity

Excellent Electrical Conductivity

Aluminium exhibits excellent electrical conductivity, making aluminium extrusions ideal for electrical applications. The high electrical conductivity allows for efficient conduction of electricity, making them suitable for use as conductors, electrical wiring, and electrical connectors.

Low Resistivity

The electrical resistivity of aluminium is low, which means it offers minimal resistance to the flow of electrical current. This low resistivity ensures efficient power transmission with minimal energy loss.

Applications of Thermal and Electrical Conductivity Properties

The thermal and electrical conductivity properties of aluminium extrusion sections make them suitable for a wide range of applications, including:

Heat Exchangers

Aluminium extrusions are commonly used in heat exchangers due to their high thermal conductivity. They are used in automotive radiators, air conditioning units, and industrial cooling systems.

Electrical Wiring

Aluminium extrusions are employed in electrical wiring due to their excellent electrical conductivity. They are used in power transmission lines, distribution cables, and electrical components.

Electronic Components

Aluminium extrusions are utilized in electronic components, such as heat sinks, capacitors, and circuit boards, due to their combined thermal and electrical conductivity properties.

Aerospace Vehicles

In the aerospace industry, aluminium extrusions are used for structural components and heat dissipating systems due to their lightweight, strength, and thermal conductivity.


The thermal and electrical conductivity properties of aluminium extrusion sections are crucial to their performance in various applications. The high thermal conductivity enables efficient heat transfer, while the excellent electrical conductivity facilitates the conduction of electricity. These properties, combined with aluminium’s other advantages, make aluminium extrusion sections a preferred choice for applications in industries ranging from automotive to aerospace to electronics.





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