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 CraftsmanQuad Mark II

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prancstaman
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PostSubject: Re: CraftsmanQuad Mark II   Fri Sep 21, 2018 11:16 pm

Yes, you can weld stainless steel with your flux core mig with the mild steel wire. They are the same metal, only stainless steel has nickle added to the mix to make it stainless steel. Stainless steel exhaust pipe, when made, they add only a little nickle to the steel, so not that resistant to rust. When they make stainless steel, it is done by a certain percentage of nickle added to the steel. So, like silverware (spoons and forks) has the highest amount of nickle (20% nickle) then the rest is steel. Exhaust pipe that is stainless steel has I think 5% nickle mixed in the steel so it doesn't rust too bad or quick. Welding stainless steel exhaust pipe would be, the welds will rust and the pipe would stay little to no rust on it. The welds will rust real bad first (being raw mild steel) so painting the welds would be ideal to combat the rust.

If you want to ever test stainless steel to see how much nickle is in it, You use a magnet. Compare how strong the magnet sticks to mild steel first, then put the magnet on the stainless steel and see how strong the magnet sticks to it. A light percentage of nickle means the magnet will have almost the same grip pull off compared to pulling it off mild steel, being there is alot of steel in the mix. Then test a fork or spoon which is the highest grade of stainless steel and the magnet will not even stick to it, you would feel the magnet very lightly try to stick to the silverware, since there is a very high nickle content.
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CraftsmanQuad19
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PostSubject: Re: CraftsmanQuad Mark II   Fri Sep 21, 2018 11:29 pm

Ah, very interesting. Honestly at first I thought it was titanium or something because it is in very good shape. Almost looks new
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prancstaman
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PostSubject: Re: CraftsmanQuad Mark II   Fri Sep 21, 2018 11:34 pm

The ends of the muffler are probably aluminum while the center wrap of the muffler could be stainless steel.
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RichieRichOverdrive
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PostSubject: Re: CraftsmanQuad Mark II   Sun Sep 23, 2018 6:25 pm

I've not had a problem mig welding a stainless nut to cast iron. Just had to preheat it lol.
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