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Review Of Coating Current Test Methods For Simulating CUI Conditions And Introduction Of A New, Small Scale, Accelerated Test Method

Review of test methods for CUI coatings and introduction of a new, small scale, accelerated test method
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Corrosion under Insulation (CUI) costs industry millions of dollars. Water ingress into conventional insulation systems can result in accelerated corrosion of the steel substrate w hich, if unchecked, will result in structural failure of the vessel or pipe. If the structure is operating under high pressure then this failure would be catastrophic. CUI can result in significant loss of revenue from downtime, maintenance and replacement of corroded structures.

Product Number: 51322-18173-SG
Author: David Morton, Ulrik Bork, Vadimas Verdingovas, Simon Daly
Publication Date: 2022
Industries: Test Method , Corrosion Monitoring and Control , Coatings
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$20.00
$20.00

Corrosion Under Insulation (CUI) is widely acknowledged to be a critical issue facing plant operators in the oil, gas and chemical industries. CUI studies from a petrochemical facility have shown that 40-60% of pipe maintenance costs are due to CUI and approximately 10% of the total maintenance budget is spent repairing damage from CUI, mainly on pipes. The risk of corrosion under insulation is considered high in the temperature range 50 – 175°C (122 – 347°F) and extreme when in cyclic temperature service between -20 and 320°C (-4 – 608°F). If CUI is not found in time, then the consequences can be severe for personnel, the environment and company reputation.  

Corrosion Under Insulation (CUI) is widely acknowledged to be a critical issue facing plant operators in the oil, gas and chemical industries. CUI studies from a petrochemical facility have shown that 40-60% of pipe maintenance costs are due to CUI and approximately 10% of the total maintenance budget is spent repairing damage from CUI, mainly on pipes. The risk of corrosion under insulation is considered high in the temperature range 50 – 175°C (122 – 347°F) and extreme when in cyclic temperature service between -20 and 320°C (-4 – 608°F). If CUI is not found in time, then the consequences can be severe for personnel, the environment and company reputation.  

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