Thank you for your reply. I figured that there was more base metal dilution in root tensiles due to the smaller distance between each base metal test piece at this location. I understand the concerns with CVN testing in HAZ.
I found a plot for stress vs. LMP for a low carbon steel which was...
I have a current project to qualify ASTM A694, F65, Q&T to itself with PWHT in accordance with B31.3-2020 Ed. Min. UTS of this material is 77 ksi. The 1st qualification used base metal with a tempering temperature of 1000F. Therefore, PWHT was performed at 950F for 11 hrs. Filler metal used...