Does TIG Rust?

admin

I know very very little about welding and need to know if somethin is TIG or not.  I gave a friend a stainless steel container so he could have one of his friends do some welding on it.  He welded a stainless steel fitting onto the side of the container.  I got it back, brought it home to a friends house and he says since the weld looks a little rusty that it might not be TIG.  Its important because the container will be used for making home brew and needs to be food grade.  Will TIG rust?  How do I tell for sure if its TIG?  Someone told me that only stainless steel welding material would stick to stainless steel so it had to be TIG, but  that doesnt sound right to me.  Any info would be appreciated.  Thanks.
Reply:He might of tigged it but then again he might not have. It isn't the welding process he messed up, it was the filler material he used. Sounds to me like he used regular old 70s6 or whatever wire he had in his welder. If it's rusting it aint stainless. Plain and simple. O, and you can wald stainless a number of ways...not just TIG
Reply:Ok, so no matter what I can be pretty certain that its not stainless because its got rust on it?  I'm being told that it will rust and oxidize a little bit depending on the conditions when he was welding.  Like I said, I know very little about welding.  Thanks.
Reply:Originally Posted by USMC205I know very very little about welding and need to know if somethin is TIG or not.  I gave a friend a stainless steel container so he could have one of his friends do some welding on it.  He welded a stainless steel fitting onto the side of the container.  I got it back, brought it home to a friends house and he says since the weld looks a little rusty that it might not be TIG.  Its important because the container will be used for making home brew and needs to be food grade.  Will TIG rust?  How do I tell for sure if its TIG?  Someone told me that only stainless steel welding material would stick to stainless steel so it had to be TIG, but  that doesnt sound right to me.  Any info would be appreciated.  Thanks.
Reply:Yes the parts are all food grade, the only thing I'm concerned about is that materials used to weld.  It needs to be stainless and now I'm pretty sure since its rusty that its not stainless.  Am I right?
Reply:Originally Posted by BCTimberwolfHe might of tigged it but then again he might not have. It isn't the welding process he messed up, it was the filler material he used. Sounds to me like he used regular old 70s6 or whatever wire he had in his welder. If it's rusting it aint stainless. Plain and simple. O, and you can wald stainless a number of ways...not just TIG
Reply:Originally Posted by USMC205Yes the parts are all food grade, the only thing I'm concerned about is that materials used to weld.  It needs to be stainless and now I'm pretty sure since its rusty that its not stainless.  Am I right?
Reply:Alright I got a better concept, I didnt know TIG was similar to stick, and that different materials could be used.  Yes its very magnetic, and the container that I know is stainless is barely magnetic.  Thanks everyone for the info.  My next question is do they make a stainless rod for stick welding?
Reply:Found my own answer, thanks for th info everyone, I'm done with this and probably wont look at it again.  Thanks Again.
Reply:Originally Posted by sn0border88Please refrain from spreading any more garbage like this, Plain and Simple... stainless will rust.  Its stainLESS not stainproof.  Why does it rust?  Any number of reason ranging from carbide precipitation (probably the case here) to service is a highly corrosive environment or simply having an alloy with less corrosion resistance. (400 or 200 series)If its for a brew kettle im assuming its very thin material, in which case it needs to be welded by a competent weldor.  If it is rusting, time to cut it out and start over.
Reply:I hope the OP knows more about the "home brew" process than he does about the "welding process".Oh, and Timberwolf, "Tis often best to remain silent and be thought the fool, than open one's mouth and remove all doubt".Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.
Reply:Originally Posted by USMC205Alright I got a better concept, I didnt know TIG was similar to stick,
Reply:Originally Posted by BCTimberwolfWhat I meant by that was if he was using the correct filler for a food grade stainless it isn't going to be rusting if it was done correctly, expecially in such a short amount of time. Seeing as how it was done by a friend of a friend and most likely for free, I ASSUMED it most likely was nothing more than a pecker with a cheap 115 welder getting in over his head. Trying to dumb it down to the point that if it was welded correctly, it essentially isn't going to rust in such a short amount of time. He did say he got it back and brought it home and it was rusting. Not that its been sitting in a corrosive environment for the past 10 years and has some rust on it. Again, assumptions
Reply:Originally Posted by Fat BastardFriends don't let friends of friends weld for their friends.
Reply:permit me to stir the soup a bit.. has anyone evr noticed that some mild steel tig beads are rust-resistant? i cant explainit but i have some stuff ive built  thats been in the garage for two years and wont rust.. mild steel with er70s2 filler...