Hello
SA790 UNS S32750 is the specification for Super Duplex Pipes & Tubes .
Therfore use of ER2507 filler alloy will help in Ferrite-Austenite balance .
Weld metal producing PREN> 40 is requirement for Corrosion properties for such joints..
I would use the attached brochure for further studies & weld alloy selection.
Hope this helps
Amitabh
On Tuesday, January 28, 2020, 03:29:19 AM EST, Bien_ND / weldinginspections.net <bck055@gmail.com> wrote:
I recommend to select AWS A 5.9 ER2209 or ER309LMo.
Refer to API RP 582 Table A.3.
On Saturday, January 25, 2020 at 4:51:48 PM UTC+7, VIshaL wrote:
On Saturday, January 25, 2020 at 4:51:48 PM UTC+7, VIshaL wrote:
Dear Experts,One of our project we have to weld material with GTAW process as per following.1. SA 790 UNS S32750 to SA 780 UNS S327502. SA 790 UNS S32750 to SA 240 Gr. 316LRequest you to please confirm suitable filler wire Grade as well as any special care require during welding.Thanks in advance.VIshaL SUTHAR
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