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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsMaterial Select...Material Select...Material selection for 7% HCl and 5% NaOHMaterial selection for 7% HCl and 5% NaOH
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4/4/2007 9:00 AM
 
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I hope someone can help me out! We have a Regen waste tank from a water treatment plant (it contains a hot lime softener and WAC vessels). The fluid to the tank contains up to 7% HCl and 5% NaOH at 90C-100C. The rest of the fluid is boiler feed water. Due to the regeneration cycles, the tank could have any combination of the three components. Therefore I need a material that can withstand both 7% HCl and 5% NaOH at boiling temperatures. We specified Hastelloy B-3 for the internals but we cannot source this material. Does anyone have any suggestions for alternate materials???
 
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4/19/2007 9:00 AM
 
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Jwong Hastelloy B / B1 will have good resistance for the descirbed service duties. If procurement of Hastelloy B 3 is a problem, Hastelloy B or B1 may comparatively be available in the market. Hope this helps you C.V.Srinivasan Nishi Engineers Pvt Ltd India April 20,2007 E-mail: nishi@vsnl.com >I hope someone can help me out! >We have a Regen waste tank from a water treatment plant (it >contains a hot lime softener and WAC vessels). The fluid to >the tank contains up to 7% HCl and 5% NaOH at 90C-100C. The >rest of the fluid is boiler feed water. Due to the >regeneration cycles, the tank could have any combination of >the three components. Therefore I need a material that can >withstand both 7% HCl and 5% NaOH at boiling temperatures. >We specified Hastelloy B-3 for the internals but we cannot >source this material. Does anyone have any suggestions for >alternate materials???
 
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