Asset Intelligence Report

A Primer on Corrosion Under Insulation (CUI)

February 13, 2017

It's one of the most well-known damage mechanisms in our industry, yet corrosion under insulation (CUI) still makes up a very large percentage of plant maintenance expenditures.

This Asset Intelligence Report on Corrosion Under Insulation (CUI) serves as a primer to increase your familiarity with this widely-researched topic. The report contains the following sections:

  • An overview of the mechanism
  • History of CUI
  • Causes of CUI
  • Detection methods and techniques
  • Prevention and mitigation
  • Codes, standards, and best practices
  • Further reading

Please note that CUI can often be very difficult to predict and even more challenge to locate without removing insulation. The purpose of this report is to serve as an introductory primer. For additional information and resources on CUI, we recommend performing your due diligence. The references provided in the report are an excellent place to start, especially API RP 583.

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A Primer on Corrosion Under Insulation (CUI)

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