Welding T304 stainless to A500 structural steel 2

[WARose]

Like it says in the title......I am trying to weld these two different types of steel together with a fillet weld. I don't do this often so I am unsure as to what to callout in the notes. Any ideas? Thanks.

 

[KootK]

Pretty informative read here that I just found: Link. Sounds like it's not a big deal in most situations.

 

[WARose]

Thanks Kootk. A lot of the info I have been able to find recommends using E309 electrodes to join these two metals. Am still looking.

 

[EdStainless]

309 would be the typical default for this.
You need enough Ni in the filler so that after dilution by the steel it will still have some ductility.

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P.E. Metallurgy, consulting work welcomed