In ASME Sec. I Tabe PW-39-1 and PW-39-2 postweld heat treatment requirements are specified based upon the material thickness.The last colum of the table covers material thickness over 5 inch (125mm) but the explanation for the holding time is like this : " 2 hr plus 15 min for each additional ,inch (25mm) over 2 inch (50mm)"
My qustion is : The last column covers material thickness over 125 mm but the holding time refers to "over 50 mm "
Isn't this a contradiction?
If not , what is the explanation?
Red Flag Submitted
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