now that we settled that
Do you know if you have to repassivate stainless after any welding regardless? From what i know you can loose the corrosion resistance if its cooked too much but I believe that if you don't overcook you can get away with just cleaning it up?
Got any info on that one? Always wanted to know if I should feel bad for leaving a stainless weld un-passivated.
If you cook it, it's beyond passivation as you've boiled the chromium out. The color you see is contamination from atmosphere, and passivation, whether with paste or with a machine, removes the contamination. @rick_h will have a better answer as to why you passivate in the food service industry.
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