mmtrainee

You now know that YOU are the one who needs to keep track of the wear on the teeth, so inspect frequently. If it was me, I would get replacements, then repair the existing. That way you will always have a replacement set. Building up is time consuming. You will not be pressured in completing repairs. Years ago, I worked at a place that manufactured farm equipment. We had one model of harrow which had teeth similar, except they were welded directly onto the frame. When the teeth had worn down, farmers would bring the complete unit back in, new original teeth were welded next to the old teeth. I suggest doing something similar. Purchase same diameter as original, cut to original length (maybe even a little longer), weld it to the original, I would use 7024, then hardface. Keep in mind that 6011 is a deep penetrating rod. 6013 is not as deep, in my mind, I think of it as a sheet metal rod. My rod of choice would be 7018 for the buildup. 7018 is medium penetration, iron powder.