316 on flowing water, submerged
316 on flowing water, submerged
(OP)
Hello,
I am using a 316SS that is starting to show early signs of corrosion after exposure of 4-6 months. Does anyone have any recommendation for a replacement metal or coating? The metal goes on a water vehicle. The O-ring is also wshowing some MgCl2 and organic Carbon-Oxygen..
Thanks
I am using a 316SS that is starting to show early signs of corrosion after exposure of 4-6 months. Does anyone have any recommendation for a replacement metal or coating? The metal goes on a water vehicle. The O-ring is also wshowing some MgCl2 and organic Carbon-Oxygen..
Thanks





RE: 316 on flowing water, submerged
RE: 316 on flowing water, submerged
Other solutions, remove from water the MgCl2, the Carbon and the Oxygen prior to use. Or remove the water all together, it is the culprit of carrying the MgCl2, Carbon and Oxygen. Ignore the O-ring, it is showing to much anyway.
Howzat,
gr2vessels
RE: 316 on flowing water, submerged
If fresh then you should look at using a weld overlay in the seal area (say a 6% Mo super-austenitic grade) and better o-rings.
If seawater, then you need a different alloy. The super-duplex and super-austenitic being my first suggestions.
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