Can you get pipe or threads Electroless nickle plated. You could EN plate any welds and you would not have a plodlem with threads corroding, And maybe you should try passivating your threaded rod will electropolish first to pull any remaining iron out of the steal.
I am passivating 316ss with 50%nitric and 50%water for 30 minutes at 72 degrees f and passing a copper sulftate just fine. But recently I saw a print that said pickel. Can & how do I pickle with nitric & water. My Question is what is the differance between Passivation & Pickle.