What is the thermal conductivity of aluminum alloy 6063T6?

The thermal conductivity of 6063 aluminum alloy is 201w/m.k.

Thermal conductivity indicates the thermal conductivity of metal. The greater the thermal conductivity, the lower the thermal resistance and the higher the thermal conductivity. Among metal materials, silver has the highest thermal conductivity (table), but its cost is high; Pure copper is second, but it is not easy to process. Air-cooled radiators generally use 6063T5 aluminum alloy, because aluminum alloy has good machinability (pure aluminum is not hard to cut), easy surface treatment and low cost. However, with the increase of heat dissipation demand, it is the general trend to use all kinds of high thermal conductivity materials comprehensively. Some radiators are made of pure copper or a combination of copper and aluminum. For example, some fins are made of pure copper at the bottom, which gives play to the advantages of high thermal conductivity and large heat transfer of copper, while the fins are still made of aluminum alloy plates, which makes the processing easy and the heat exchange area as large as possible to increase convective heat transfer. But the biggest difficulty of this method is how to connect the copper-aluminum fins completely. If the connection is not good, it will produce a lot of contact thermal resistance, which will affect the heat dissipation effect.