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Prevent Calcareous Layer Subsea

thread338-498137

Prevent Calcareous Layer Subsea

Prevent Calcareous Layer Subsea

(OP)
Hi!

Are there any metals/alloys that are inherently resistant to the formation of calcareous layer for metals subsea connected to cathodic protection system?

Regards
Siggi

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RE: Prevent Calcareous Layer Subsea

I can't find any free information. It looks like magnesium inhibits the formation of calcareous deposits.

https://meridian.allenpress.com/corrosion/article-...

If this is a heat exchanger application consider operating the exchanger at a higher temperature to prevent deposits. We see distinction zones of deposits based on temperature distribution of our exchangers. 120°F and lower forms deposits, higher stays clean. I always assumed this was bio fouling related but perhaps they are calcareous deposits. Electrically isolating the exchangers also reduces deposit formation (less cathodic).

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