Cupal (Copper Aluminium BI-Metal Sheet)
Cupal, Bimetal Cu-Al – Copper and Aluminum sheets
Cupal sheets - bi-metal sheets, aluminium-copper sheets, Cu-Al sheets are indispensable in the energy, electrical and electronic industries. Washers and spacers necessary to connect copper devices with aluminum elements are made of Cu-Al sheets. Connections made using cupal washers prevent the formation of electrochemical corrosion at the connection of aluminum - copper Cu-Al.
Cupal sheet is composed of two layers: an aluminum layer in the EN AW-1050A grade, the copper layer is made of Cu-ETP electrolytic copper. The ratio of the thickness of the aluminum to copper layers is 1:1. The specific gravity of the cupal sheet is about 5.8 g/cm3.
Cu-Al sheets very often have very unusual dimensions due to the complicated production process. We will provide them to the required dimensions. Please send us an inquiry with the number and dimensions of the sheets you need - we will send you an offer.