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PWHT of 321 SS

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DVWE

DVWE

Petroleum
Joined
Apr 5, 2007
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Hello,

I have recently had a request to prepare a WPS/PQR for welding 321 SS. My question is at what service temperature would this material require a sensitization PWHT? For example, the part we are fabricating will never see a service temp over 450 F.

Thanks in advance.
 
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Thanks metengr.

I was given a guideline of 800 F, which sounded a bit low to me, eventhough we're nowhere near 800 F.
 
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