i might be overthinking this, but i'm welding a mild steel home-made gear hanger to this pompino dropout. TIG.
i think the frame is 4130 (though no guaranteeing that the dropout is) and the hanger is bog standard mild steel cut from some angle. both ~6mm.
i had a quick google to see if there would be anything to worry about and i see people talking about preheat and using an ER-70S2 filler, which i have.
method wise, i was going to grind a slight bevel in to both pieces, tack x2 front and back and do a full run at the front and the back.
any bright ideas?