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atorroja Associate Join Date: Mar 2009 Posts: 48	Fillter Metals 09/15/2009 5:43 AM
	P 5B to P 8 needs PWHT. The filler metal for this joint is Cr Ni Fe3. (T91 to SS 304L). PWHT at 1400 F is required by ASME I? This temp. is not going to damage te ss 304L? Thanks
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Guest	#1 Re: P 5B to P 8 needs PWHT 09/15/2009 12:20 PM
	Keep the PWHT time under 9 hours in duration and you will be fine. http://www.corrosionist.com/sensitization%20ss.jpg

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