Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
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for Metal Finishing since 1989
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Passivating SS430/436 w/ citric acid
Hi, I'd like to passivate some SS430/436 using citric acid . I'll follow ASTM 967 and the 4-10% citric acid guidelines. The tank itself is built of SS316. The 316 will be fine right? I don't want the tank itself falling apart.
I have some aluminum parts that I'll probably have to get replaced as well.
engineer - Berkeley, California, USA
August 13, 2009
August 17, 2009
Normally a 316 tank will stand up. If the welds were not with a
"L" rod, or the welder used far too much heat, they might fail somewhere down the line.
I would consider using a vinyl liner. There are some good ones out there and the price is less than a leaking tank.
- Navarre, Florida
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