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Material for high temperature caustic vessels

Material for high temperature caustic vessels

Material for high temperature caustic vessels

(OP)
Hi Guys,

I'm designing a pressure vessel with 250 C temperature and 20 barg for caustic soda 50%. Do you have any idea about material selection? I have read a couple of references like "Alloy selection for caustic soda service" and "NACE SP040315" but not applicable for this temperature.

Thanks

RE: Material for high temperature caustic vessels

Look at nickel base alloy options in ASME BPV Code Section VIII Div 1. Ni base alloys are recommended by Dow Chemical literature in area c.

RE: Material for high temperature caustic vessels

For reference, here is the doc link of the SS and Ni Alloys material review for caustic cracking. Interested to know what is the material selected on your final design. Good luck.

https://e-reports-ext.llnl.gov/pdf/326030.pdf



RE: Material for high temperature caustic vessels

Hi Mosii,

Earlier this posting was posted in "Corrosion Engineering forum". After getting 2 responses including one from myself, suddenly this posting was removed from the above forum and got reposted here.
Any specific reason?

Thanks.

Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
ca.linkedin.com/pub/pradip-goswami/5/985/299

RE: Material for high temperature caustic vessels

@pradipgoswami - the policy is to post a question only in one forum. Posting the same question across multiple forums usually attracts a report flag from someone. The moderators investigate the report flag and, in general, will attempt to remove all the posts save the one in the most appropriate forum. Frustrating indeed, but the learning point is to check across other forums before making a reply.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/pub/8/83b/b04

All answers are personal opinions only and are in no way connected with any employer.

RE: Material for high temperature caustic vessels

Well said, SJones. I red flagged the post in the corrosion forum because it was an exact duplicate with the post in this forum - boilers and pressure vessel engineering. The OP dealt with fabrication of a pressure vessel with consideration of corrosion.

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