Oerlikon Carbocast NiFe description: CARBOCAST NiFe is used for dissimilar joining and surfacing of cast iron without or with only a minimum preheating of < 300C, cast iron cold welding. Used for welding applications on new cast-iron components made of globular gray-cast iron (GJS/GGG) and dissimilar joining of 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.