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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsMaterial Select...Material Select...Corrosion under isolationCorrosion under isolation
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3/31/2003 9:00 AM
 
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Is the ASTM A285 (HII)-pipe suitable for the transfer of the exhaust gas from turbine generator, which is about 350 oC. If the pipe is insulated with alum-plate and+glass wool, can corrosion under isolation occur?
 
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4/5/2003 9:00 AM
 
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Dear Sir: Corrosion under insulation (CUI) can occur beneath any insulation that can trap and/or absorb water. At your operating temperatures of 350C, aqueous corrosion would only be expected to occur during abient conditions and start up and shut down conditions. Hope this helps! David Hendrix The Hendrix Group Inc.
 
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4/29/2003 9:00 AM
 
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I think that it is worthwhile to mention the conditions around the turbine in assesing this type of corrosion..... Is the turbine located in a well kept power plant where there will be virtually no chance for corrosion products to build up ? Or... is the turbine located in the midst of a process plant where this type of corrosion has already been found in other nearby systems... Just my thoughts MJC
 
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