Why Al/Cu safe connectors use 6061-T6 not 1350?

[UGPee]

I did some research and learned that the recommended way to intermix aluminum and copper is using NSI Polaris pre-insulated connectors or alumiconn connectors.

I am not sure what kind of alloy that alumiconn uses but NSI Polaris connectors and other similar connectors like Morris connectors are all using 6061-T6 aluminum alloy. ChatGPT told me this kind of aluminum alloy is not a good conductor since it has a conductivity of about 40% IACS; while 1350 has 61% IACS.

Does anyone know the reason behind that why not use 1350 in connectors? Is it because the special gel that pre filled in those connectors can increase the overall conductivity of connector?
Also, should I worry about the transmission loss caused by 6061-T6 connectors and spend way more money to replace all aluminum wires in my home? Thanks.

 

[charlie b]

I am closing this thread in accordance with forum rules. We are not allowed to assist a person who is not an electrician to perform their own electrical installation work.