ControTrace heating panels - does it suffer CUI?

[rscosta1976]

Greeting,

Your thoughts would be appreciated to shed some light on the possibility of having Corrosion Under Insulation (CUI) on the ControTrace heating panels. These are supplied in bare condition.
Although the highest risk of CUI is occurring in the temperature interval of 170 °F to 230 °F, both API 570, API 510 and API RP 583, clearly identify that CUI can generally occur in the temperature range between 10 °F and 350 °F.
Most Controtrace applications are supplied with LP steam and have an operating temperature within the CUI range.
The question is: should the ControTrace panels be coated to prevent CUI?

Thanks,

 

[0707]

In low points and if thermal insulation is not properly installed to avoid water and moisture ingress, as in API you mention the ppossibility of CUI can happens

 

[EdStainless]

Any covering on piping can lead to CUI.
It must be well sealed from water ingress and have appropriate drainage allowances.

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P.E. Metallurgy, consulting work welcomed