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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsOil Refinery Co...Oil Refinery Co...corrosion allowance in tubecorrosion allowance in tube
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6/18/2005 9:00 AM
 
hi we have gas - gas heat exchanger in our gas refinery.it has 1170 tube s with this characters: sa334 gr 1 --thk =2.1mm -od =19.05 mm - 14 bwg . my question is that , is there any corrosion allowance in tubes of any heat exchanger s? tanks
 
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6/22/2005 9:00 AM
 
zama.... In my opinion, a corrosion allowance should NOT be applied to heat exchangers with properly selected tube materials. I have seen many heat exchangers in the process industry constructed with more expensive, thin walled, corrosion resistant tubes (usually SS) The other components of the same HX may be constructed of less costly ( but more corrosion prone) materials with a corrosion allowance included. The reason for these material choices is that a less expensive HX can be the result. My recollections only...... MJC
 
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6/23/2005 9:00 AM
 
Usualy tube exchanger corrosion is nil. Tube exchanger thicknesses are determined by the BWG number. Regards Luis Marques
 
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