Dear Sir, Please advise on the PQR base material combination, filler metal selection, and PWHT requirement for 20 mm thickness, as per ASME B31.3 , for the following joints: API 5L X65 Pipe → A350 LF2 Flange API 5L X65 Pipe → A860 WPHY 65 Elbow A860 WPHY 65 Elbow → A350 LF2 Flange All materials are understood as P-No. 1, Group No. 2 as per ASME Section IX. The service is ADNOC sour service / H₂S . Kindly advise the suitable PQR base material combination, filler metal, PWHT requirement, and applicable Charpy / sour-service testing requirements On Thu, 3 Sep 2026 at 10:00 PM ELAVARASAN SARANGAPANI < elavarasan1861994@gmail.com > wrote: Dear Sir, Please advise on the PQR base material combination and filler metal selection for the following joints: ● API 5L X65 Pipe → A350 LF2 Flange ● API 5L X65 Pipe → A860 WPHY 65 Elbow ● A860 WPHY 65 Elbow → A350 LF2 Flange ...
Materials selection, welding, forming, Heat treatment, corrossion, NDT