can you tig stainless to mild steel?

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and if so, what would you use, a stainless rod ?
Reply:Yes, it is very easy to do. I would use 308 filler, but I'm no expert. Just a hobby welder.
Reply:thanks!
Reply:Yes, I just grab whatever wire is handy, carbon or s/s but there is a proper wire for this, I can never remember what it is though.Stephen
Reply:You can weld it with any steel filler but the weld will be brittle.  You chould use 309 or 312 alloy.  You need the extra nickel because the chromium in the stainless mixing with the mild steel makes a hard alloy.  The nickel reduces the hardness making the weld less brittle.
Reply:I just got some 316, that should work Ok?
Reply:Should be fine, if I've got it thats what I prefer.Stephen
Reply:316 still doesn't have enough extra nickel to reduce the brittleness of the weld but it is better than carbon steel welding wire/rod
Reply:Better with 309 your 316 will crackTom Baileyweldingsupplies
Reply:thanks again, I will pick some up.
Reply:Thread Revival!is their a filler that would work better in higher temperature applications? I am trying to piece a exhaust manifold together using 304 pipe and a mild steel flange
Reply:A few different fillers will weld it together, the best choice should be an ER309 filler.Yes, there is numerous fillers for high temp applications, your filler choice should always be based on the grade of metal you are welding.Use the ER309L for your above manifold, my second choice would be to use the ER308L.Good Luck!!
Reply:This may help you all...http://www.lincolnelectric.com/knowl...nlesssteel.aspGood Luck!!
Reply:They recommend 309 . but, if you want more nickle , for a softer bond (more elastic) 310  could be tried . 309 typically has 19-9 %    (chrome & nickle ) , 310 has 25-20 . ( 25 per cent chrome -20 percent  knickle )