NCX-7 is suitable for joining and surfacing of nickel-copper alloys and of nickel-copper-clad steels. Particularly suited for the following materials: NiCu30Fe, NiCu30Al. It is also used for joining different materials such as steel to copper and copper alloys, steel to nickel-copper alloys. It is excellent for repairs in chlorine environment and works well as both a joining and cladding electrode.