[MW:30197] ASME B31.3 PWHT

Dear Experts,

 

Could you please advise me for the following questions:

Question:  Preheat of > 95C (200F) is not used but the weld is made with multiple passes. Is PWHT required for a weld joining P-No.1 materials, when the control thickness is less than or equal to 25 mm (1 inch) but the nominal material thickness is greater than 25 mm (1 inch)?  

Could you please advise me: which thickness, Control thickness or Norminal material thickness, shall be used to determine PWHT requirements & exemptions as per ASME B31.3 ? 

Thank you in advance for any help you can provide.

Regards.

--

PV

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CADOyxJjGsnNd-ceR_5CGYm%2B%2Bmr2%2B_DTc510xK9Z-Dyo8WhLzUw%40mail.gmail.com.