EdStainless:
Yes, they present on the face of the weld. We are using certified materials that are very well cleaned and prepared, so I am again looking for a culprit constituent; possibly more than one. You noted molybdenum making the weldment more sensitive. Do you mean it's more sensitive...
You are running a different combination of processes with the thicker material, and since process(es) are considered an essential variable, you will need a separate WPS and PQR.
I am a welding engineer wrestling with an undetermined weld process problem involving 316L stainless steel.
Our company runs many mechanized longitudinal seam welders, GTAW-based, for the creation of custom tubes, tanks, etc.
We are intermittently experiencing what appear to be precipitates of...
