Re: [PipingDesign] stress corrosion cracking

From: <Narendra>
Date: Sun Dec 07 2003 - 21:23:00 EST

Dear Lakshmi V Narayana
CSLT is the most popular selection. Yes anhydrous ammonia cause SCC in Carbon steels, but the precautions like inhibition using distilled water added upto 0.2 % makes CS SCC resistant to Ammonia service. Another precaution is to reduce the residual stress by PWHT of welds and the cold formed components of the handling system. Slight over design (reduced component stress) may give you relief from stress cracking.
Hope it solves the problem faced by you. Narendra K Roy
Gramya Research


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