Tayyabeme,
WELCOME TO THE AWS WELDING FORUM!!
Now, I see you used the search function and dragged out an old post dealing with similar application. Please, only post your question once. It will be much easier to get an answer when all the responses are focused on one thread. And thank you for doing some of your own research.
Do any of the links in the thread you pulled back to life answer your question? Seems like Henry posted some good links that should have taken care of it.
Is there anything else you still need to know? Hard to get very specific without more information. After reading Henry's links you should be able to get more specific with any further questions so we could be of more help.
He Is In Control, Have a Great Day, Brent
The suggestions for filler on this are thus far fine. Really, stop and think. Corrosion is not an issue for a nickel weldment or the Alloy 20 since you are welding to carbon steel. All you need do is really stay away from SS's that could cause embrittlement.
The company I work for we have a P45/P1-GTSM WPS. GTAW we use ERNiCr-3 see (ASME SECT.II PART "C" SFA5.14 A7.3) and for SMAW ENiCrFe-3. Inco 82 in used for dissimilar welding of nickel-base alloys, and for joining steel to stainless steel or nickel-base alloys using the GTAW, GMAW, SAW, and PAW processes.
Hope this help.
J.W.
Thank you so much. Now I have a line of action to work on. Thanks.