Introduction:

AWS A5.7 ERCuNi. It is formulated for the welding of 70/30, 80/20, and 90/10 copper-nickel alloys. The weld metal provides outstanding corrosion resistance, especially good for seawater corrosion resistance. 

Application:

Particularly suitable for the welding and hard facing of copper nickel such as machinery, desalting of seawater, ship-building, oil refinery, and food processing industries. Also suitable for welding of nonferrous alloys, dissimilar steel materials.