1. Check with the Welding consumable manufacturer whether they produce ER308L with your Ferrite requirement.
2. Check for ER308 consumable, as your service condition being low temperature application, by proper welding condition sensitization could be avoided and higher carbon produces a more austenitic structure.
If the above 2 conditions do not work then you can try other alternative.
Thanks & Regards
J.Gerald Jayakumar
On Wednesday, March 4, 2020, 03:30:24 PM GMT+7, Atul Jha <atulkrjha21@gmail.com> wrote:
Dear Experts
-- To obtain Ferrite No. 3-5 FN After Welding of SA 240 TYP 304/304L Plate material which filler wire shall be used keeping below requirement under consideration :-
Mechanical Requirement :- As per ASME Boiler & Pressure Vessel Code.
Additional mechanical requirement Impact @ -196 degree celsius :- minimum Lateral Expansion 0.38 mm.
Welding Process : GTAW/SAW.
Service Type :- Cryogenic Service ( LNG Fuel Tank).
Approximate Job Dimension ;- THK 12 mm DIA. 5 meter Length - 30 meter.
Home Work Done :- I wish to do PQR With ER 310 Wire ( Cost Approx INR 550 Rs/Kg ).
OR With ER 320 ( BUT here I have doubt that may Be ferrite obtained after welding Varies from 0-3 FN. Cost is also a constraint Approx INR 3000 Rs/Kg).
Kindly Guide if any other filler wire is available & work done in past to obtain fulfill above requirement.
Regards
Atul Jha.
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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