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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsMaterial Select...Material Select...Materials for seawater vessel internalsMaterials for seawater vessel internals
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7/14/2005 9:00 AM
 
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This is for a seawater filter vessel. Seawater is 55-100 °F, PH 8, 3 mg/L chlorine, dissolved oxygen 8 mg/L. Operating pressure 80 psig. What would be the best selection for the internals ? I'm considering 316LSS but someone say 317 SS would be better. Is that right ? Thanks for your help JLDV
 
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7/14/2005 9:00 AM
 
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Better you use Duplex SS of category Alloy 2205 or 2304 for improved resistance to general and pitting corrosion .
 
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7/15/2005 9:00 AM
 
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Mitra is right. Duplex SS will be superior compared to aust. SS. In case you want to go for aust. SS, SS 317 will be better compared to SS 316 as it has higher Mo conetnt and hence superior pitting resistance. 'Hope it helps Chakra
 
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7/15/2005 9:00 AM
 
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JL: Our two cents worth is to consider any available alloy with a PREN number greater than 40. We don't recommend the use of 316 or 317 in you stated application. Hope this helps! David Hendrix The Hendrix Group Inc.
 
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