Showa Denko launches ST60-HSM aluminum alloy on-board EV bus bars

Showa Denko has started full-scale marketing of its ST60-HSM aluminum alloy board, which is designed to be used in place of copper as an on-board bus bar connecting an EV’s motor and power electronics. In 2021, SDK started to provide several automotive parts manufacturers with samples of the boards.

Showa Denko says the ST60-HSM, which is lighter and less expensive than a conventional copper bus bar, has a heat conductivity equivalent to that of pure aluminum, and a strength that’s on a par with 6061 aluminum alloy.

Source: Showa Denko