Hydrocarbon Processing Copying and distributing are prohibited without permission of the publisher

Corrosion under insulation is a hidden problem

03.01.2013  |  Hanratty, T. ,  The Sherwin-Williams Co., Houston, Texas

Keywords: [corrosion] [insulation] [CUI] [steel] [protective coating] [epoxies] [epoxy] [NACE] [ASTM]

Corrosion under insulation (CUI) is one of the costliest avoidable problems facing the hydrocarbon processing industry (HPI) today. CUI afflicts refineries—specifically, the steel piping, storage tanks, container vessels and other process equipment within the plants that are subject to extreme temperature fluctuations. Calcium silicate or mineral-wool insulation applied to the pipe or vessel can mitigate the thermal cycling effects. But the presence of seams, gaps or other discontinuities in the insulation layer makes them susceptible to infiltration by outside moisture or from the process environment itself.

To continue reading please, log in to hydrocarbonprocessing.com.

Subscribe now for premium access and unlimited access to the site, including archived articles and the process handbooks.  Start a free trial to gain access to articles from the current issue of Hydrocarbon Processing. 

Already have an account?


Subscribe today and gain unlimited and immediate access to the site. Plus, you'll receive the next 12 issues of the magazine in your choice of print or digital format. Start your subscription today.

Free trial

Start a free trial and gain immediate access to the current issue of the magazine plus additional, select content.

30 Day Trial

Related articles


Sign-up for the Free Daily HP Enewsletter!

Boxscore Database

A searchable database of project activity in the global hydrocarbon processing industry


Is 2016 the peak for US gasoline demand?




View previous results

Popular Searches

Please read our Term and Conditions and Privacy Policy before using the site. All material subject to strictly enforced copyright laws.
© 2016 Hydrocarbon Processing. © 2016 Gulf Publishing Company.