Electrode having a pure nickel core wire for welding cast iron without or with low preheating (max. 300°C). Suitable for welding cast iron with lamellar graphite, white and black heart malleable and nodular cast iron. Used also for repair welding of cracked cast iron parts or joining components made of steel, copper or nickel materials to cast irons. Weld metal is machinable. Provides easy arc striking and restriking, stable arc and smooth bead surface. Weld short beads, about 30 to 50 mm long. In order to reduce weld residual stresses, hammer-peen welds slightly before cooling. Preferably used with DCEP but possible to use also with AC.

Electrode having a nickel-iron core wire, for welding cast iron with or without preheating. The weld metal features a low coefficient of thermal expansion and as a result, little shrinkage. It has higher strength properties than pure nickel weld metal and is therefore preferably used for welding nodular cast iron, white and black heart malleable cast iron, as well as austenitic nodular cast iron or joining these metals to components made of steel, copper or nickel materials. Easy arc striking and restriking, stable arc, smooth bead. Weld metal is machinable. Weld short beads.