Bohler FOX CN 13/1 description: Basic coated electrode for welding similar corrosion resisting, martensitic and martensitic-ferritic rolled, forged, and cast steels. Improved ductility from added nickel. Resistant to corrosion from water, steam, and sea water atmosphere. Excellent slag removability and smooth bead appearance. Metal recovery approx. 130%. Out-of- position weldability. Preheating 150-200C, interpass temperature 180-260C. Postweld heat treatment at 650-750C.