PetroStreet

On the behalf of our forum member, Inconel.

Dear All,
Design Code: ASME BPVC SEC I
Welding Code: ASME BPVC SEC IX

I need your help. What are the precautions I have to take during fabrication of T/P 23&T/P 24 materials? What would be the matching welding consumable for T/P23 &T/P 24.Preheat and PWHT required or not? It will be highly appreciated, if forum members could share their experience on these materials.

Thanks in advance.

We have used E9015 and ER90S-G for the welding of T/P-23 and T/P-24 with good results.
Pre-heating performed at 200 deg C and interpass must be maintained at 200-250 deg C.
We did PWHT at 740 deg C for 02 hours.

Fabrication guidelines for P23 & P24 are the same as you might have handled P22, the more common alloy.
What is the joint type and thickness?

Go through the attached document.
That would surely help you.