Bohler SAS 4-FD description: Rutile, strip alloyed, flux cored welding wire for GMAW of austenitic CrNiMo(Ti/Cb) alloyed steels preferably used in the horizontal and downhand position as well as the slightly vertical down position (1 o’clock). This product provides high productivity and is easy to operate achieving excellent welding characteristics, self releasing slag, almost no spatter formation and temper discoloration, smooth weld finish and safe penetration.