Bohler FOX CN 13/4 SUPRA description: Basic electrode, core wire alloyed, low-hydrogen suited for welding similar soft-martensitic and martensitic-ferritic rolled, forged, and cast steels. Mainly used in the construction of hydro turbines, compressors. Resistant to corrosion from water, steam and sea water atmosphere. Thanks to an optimum balance of alloying components the weld deposit yields very good ductility and toughness and cracking resistance despite of its high strength. Excellent slag removability, smooth bead appearance and low hydrogen weld metal (HD 5 ml/100 g). Out of position weldable except vertical down.