SS Steel Corrosion
SS Steel Corrosion
(OP)
Hi all,
Is there any solution for corrosion in SDS pipes and SDS pump casings other than pickling and passivation?
Is there any solution for corrosion in SDS pipes and SDS pump casings other than pickling and passivation?
RE: SS Steel Corrosion
What is the service, materials, type of corrosion.
Help us out here.
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P.E. Metallurgy, consulting work welcomed
RE: SS Steel Corrosion
https://www.acronymfinder.com/SDS.html
MJCronin
Sr. Process Engineer
RE: SS Steel Corrosion
RE: SS Steel Corrosion
Pardon me. I was referring to Super Duplex Steel.
RE: SS Steel Corrosion
Material: Super Duplex Stainless Steel
Affected Equipment: 1. Pump casings(material EN 1.4469 (similar to ASTM A890 Grade 5A))
2. Interconnecting Piping( Super Duplex and SS 316)
Type: Seams like localized pitting corrosion in case of pumps. In pipes pitting is observed especially in HAZ.
Attached file contains photos for reference.
RE: SS Steel Corrosion
RE: SS Steel Corrosion
We do that one better... MSDS; now, I know what you're talking about.
Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?
-Dik
RE: SS Steel Corrosion
RE: SS Steel Corrosion
It may be something, or it may be nothing.
Those are all external, where they see deposits of salt on the surface.
If they were ever handled or touched with steel tools then I would expect to see rust spots everywhere.
And the 316 is hopeless, it will not tolerate seawater, period.
Do you have leaks?
Have you opened anything up to see if this is more than cosmetic?
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
RE: SS Steel Corrosion
"Everyone is entitled to their own opinions, but they are not entitled to their own facts."
RE: SS Steel Corrosion
RE: SS Steel Corrosion
RE: SS Steel Corrosion
Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?
-Dik