Preheat different thickness according to ASME
Preheat different thickness according to ASME
(OP)
Hi, I would like to know what are tinkling about preheat 2 different thickness according to ASME section IX.
If I want to weld, for example, A516 gr 70 with one part 20 mm with 60 mm, I think we need to consider the thicker part for the preheating but in ASME section IX no specification about this.
What are you thinking?
I'm right?
Thank,
Louis
If I want to weld, for example, A516 gr 70 with one part 20 mm with 60 mm, I think we need to consider the thicker part for the preheating but in ASME section IX no specification about this.
What are you thinking?
I'm right?
Thank,
Louis





RE: Preheat different thickness according to ASME
RE: Preheat different thickness according to ASME
If you have something about ASME explanation I will appreciate.
Thank
RE: Preheat different thickness according to ASME
The Code considers preheat as mandatory only when looking at exemptions for PWHT. Please review Nonmandatory
Appendix R "Preheating". In the Introduction and for specific material groups the recommended preheat is based on chemical composition and material thickness, which means thicker materials would require preheat.