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Discussion Forums - The Hendrix Group
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8/5/2004 9:00 AM
 
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Does the pipe welding of SS321 to SS321 require PWHT? If not why?
 
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8/5/2004 9:00 AM
 
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Kumar: Typically, welding 321SS to itself does not require a PHWT as it is not a hardenable material and its composition minimizes sensitization based on migration of cbromium carbides to grain boundaries. David Hendrix The Hendrix Group Inc.
 
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3/15/2005 9:00 AM
 
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As SS 321 & SS 347 are stabilized grade, we generally recommend stabilisation treatment, i.e., heating to approx 900 C, holding for two hr followed by air cooiling
 
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