Thanks coldman, otto nobedder and everyone, I have tried a fine stainless steel wire brush some, maybe as you suggest a 70S6 rod and a little heavier brush might work. I believe some of the problem is as you suggested otto nobedder in that the one metal may have higher impurities in it. I say this b...

Hi guys, First of all I liked to thank all of you for your help and suggestions in this matter. As far as cleaning I practice the three C's of welding, clean,clean,clean and that's whats led me to ask for you fine peoples help as I am not quite sure how to get this slag without damaging the appearan...

Hi, When tig welding 1020 and 4130 steels together with ER70S2 rod I get small spots of black glass like slag on the welds here and there and cadmium plating won't stick to this. Tried glass bead media to remove it and doesn't work. Any idea's or suggestions of what to use to remove this off the wel...