Ted Mooney, P.E. RET
- Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Pickling of SS pipes
After welding of Stainless steel pipes, would like to do pickling in order to remove any welding slag left inside the pies. please advs how to carry out the same.
S. Iyer- Mumbai, Maharashtra, India
2003
Do enough Argon purging i/s the tube during welding. This will eliminate need of pickling. After pickling you need to scrub the surface to remove the oxide coating. complete removal can not be ensured without visual checking which may be possible by use of fibroscope/ boroscope. Pickling solution can be soft to very strong depending on the concentration of HF, HNO3 and Potassium-di-chromate. bye
S. Pradhan- Mumbai, India
2005
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