I have to weld some Grade 8 nuts to SA 193 B7 threaded rod. Only available for filler at the moment is 308L. Would it be better just fusion weld it without filler or use 308L.
Not structural just holding nuts on the rod.
Nevermind, I got some ER70S-6 and was able to weld it and to get it to work. To clarify, this was only done because we needed a long threaded component to jack something into place and this is what was on hand. Welding of SA 193 B7 (4140) in a critical application is a huge no-no, since you cannot guarantee the properties post weld.