Oerlikon Superfonte NiFe description: SUPERFONTE NiFe is a basic-graphite coated MMA electrodes with nickel-iron core wire, for joining and surfacing of cast iron without preheating or with a minimum of <300C, "cast iron cold welding". Used for welding applications on new cast-iron componets made of globular gray-cast iron (GJS/GGG) and dissimilar joining og GJS to steel. Suitable for cast irons with globular graphite (GJS), black-heart cast iron (GJMB), white-heart cast iron (GJMW), austenitic cast iron and dissimilar joints to steel.