Les Henson Posted March 12, 2009 Share Posted March 12, 2009 Anyone done this with a Gas MIG? What sort of weld do you get? Thanks Les. Quote Link to comment Share on other sites More sharing options...
stuck Posted March 12, 2009 Share Posted March 12, 2009 Anyone done this with a Gas MIG? What sort of weld do you get?Thanks Les. Yep, several times using MS wire and Argon / CO2 mix. I dare say it would look better with SS wire but it does the job. Got some scrap SS at home if you want piccies. Mick. Quote Link to comment Share on other sites More sharing options...
white90 Posted March 12, 2009 Share Posted March 12, 2009 Stainless exhaust box/mild steel tube been there a few years now. welded with gas mig Quote Link to comment Share on other sites More sharing options...
Les Henson Posted March 12, 2009 Author Share Posted March 12, 2009 Thanks both of you. I'll give it a spatter. There's always filler to cover the mess up Les. Quote Link to comment Share on other sites More sharing options...
smo Posted March 12, 2009 Share Posted March 12, 2009 Yup done it, and also welded stainless-stainless using standard mig with mild wire - results were excellent on both using standard argo shield light on my "hobby" mig Quote Link to comment Share on other sites More sharing options...
tel Posted March 12, 2009 Share Posted March 12, 2009 ive just made my spare wheel carrier and i dare say it seems to weld better using normal wire rather than stainless looks neater anyway not sure about strengh yet Quote Link to comment Share on other sites More sharing options...
Mark Posted March 12, 2009 Share Posted March 12, 2009 mild to stainless and stainless to stainless both with mild wire and CO2/argon mix (argo shield universal) with no problem. the joint is not stainless obviously... but it welds fine. Quote Link to comment Share on other sites More sharing options...
tel Posted March 12, 2009 Share Posted March 12, 2009 so if you intent to paint it it doesnt matter? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted March 12, 2009 Share Posted March 12, 2009 Same here - my rear winch tray is braced with some handy SS box that was laying about. Quote Link to comment Share on other sites More sharing options...
Ally V8 Posted March 12, 2009 Share Posted March 12, 2009 If you keep the current up and the wire feed down,move quickly - the weld will be strong and take enough of the melted parent metal up not to rust anyway.The favourite years ago was cracking down pipes on RR classics with Cats,from the factory the weld was biased too much toward the thick flange and little to the down pipe.An ordinary ms mig weld "snaked" between the flange and the downpipe would give a good looking permanent repair - that didnt rust. (Good job too considering the replacement cost.) Quote Link to comment Share on other sites More sharing options...
Les Henson Posted March 12, 2009 Author Share Posted March 12, 2009 so if you intent to paint it it doesnt matter? Of course it does - doing a bad job and then covering it up is just a bodge. Les. Quote Link to comment Share on other sites More sharing options...
smo Posted March 12, 2009 Share Posted March 12, 2009 Of course it does - doing a bad job and then covering it up is just a bodge.Les. I think he was referring to using mild steel mig wire over stainless rather than a bodge over a decent job Quote Link to comment Share on other sites More sharing options...
disco tony Posted March 13, 2009 Share Posted March 13, 2009 best results would be to use 316l stainless filler wire, (the recommended filler for dis-similar joints), but a bit spendy!! if you have access to gas, ie oxy/acetylene, you can get filler in short lengths and get excellent results. Set flame to slightly carborising. Quote Link to comment Share on other sites More sharing options...
tel Posted March 13, 2009 Share Posted March 13, 2009 I think he was referring to using mild steel mig wire over stainless rather than a bodge over a decent job yea thats what i meant Quote Link to comment Share on other sites More sharing options...
100inch Posted March 15, 2009 Share Posted March 15, 2009 best results would be to use 316l stainless filler wire, (the recommended filler for dis-similar joints), but a bit spendy!! if you have access to gas, ie oxy/acetylene, you can get filler in short lengths and get excellent results. Set flame to slightly carborising. hopefully you are not in the welding trade....m Quote Link to comment Share on other sites More sharing options...
steve_d Posted March 15, 2009 Share Posted March 15, 2009 hopefully you are not in the welding trade....m An explanation would be far more helpful than a put-down. Steve Quote Link to comment Share on other sites More sharing options...
100inch Posted March 15, 2009 Share Posted March 15, 2009 Sorry, was not my attempt being rude. MS or 316 is the wrong type of wire and will fail. ER 309 is the correct one for stainless to mild s.. Any welding on SS with the oxy is wrong right from the start. Carbonising flame is something you will not have on SS, definitely. Using any gas with more than 3-5% CO2 will have a very negative effect on corrosion. Carbonising again. But, if you are welding an exhaust or simliar using MS wire and gas on your MIG will work and probably last for a long time. For anything else with more importance seek a good welding shop. m Quote Link to comment Share on other sites More sharing options...
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