Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Passivation procedure
Dear Sirs,
I need a proper procedure for conducting passivation for a complete stainless steel water circulation loop, including the storage tanks. Inputs will be of great help.
PHARMACEUTICALS - Al-Qassim, Saudi Arabia
2007
2007
Bahjat:
Use of citric acid based chelant passivation systems are routinely used for high purity water system passivation treatment of austenitic stainless steels. Their use is generally at 80 degrees C. for 1 to 3 hours. An alkaline cleaning process prior to passivation is required, and generally used under similar condition.
Thanks, Daryl.
Costa Mesa, California, USA
You should use Biodegradable Stainless Steel Passivation jelly products. It will passivate SS lines properly.
Vinay Golwala- Dahisar, Mumbai, India
2007
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