I have a Magnaflow Ti catback and I wanna have the neckdown at the cat flange corrected...my question concerns welding steel tubing to titanium tubing? Is it any different than welding steel to steel? Sorry for the dumb question.

 

^^ Yes the difference is that you can't weld steel to titanium.

 

if you can, you'll be a millionaire!

 

yes you can.... you just have to get the titanium hot enough to weld with the steel... granted you would have to weld it hot as hell.

 

good luck with that. let me know if you're successful, maybe you can weld some aluminum to some stainless for me!

 

isnt titanium the strongest metal... that comes on space shuttles and half of it i made out of so it doesn't burn up while its flying from the heat or coming in from space from the super heat reaction.


im pretty sure its nearly impossible

 

No... I work at a power plant welding... and you have to weld titanium/steel/iron just about every kind of metal to every other kind of metal... trust me it can be done it just takes alot of skill

 

hey, dude trust me it can't be done i work at a muffler shop and i had similar problem once with a z06 (cat back are titanium) the owner asked me to remove the stock mufflers and put some flowmasters the guy was to cheap to buy a catback so, i cut them off and what was my surprise when i was trying to weld the flowmasters?? IT COULDN'T BE DONE WITH NOTHING MIG,TIG AND EVEN WITH A WELDING ROD COULDN'T GET IT DONE but some guys say that you could pull it off, try it and then post what happend

 

you can but the weld will be weak and never hold to be durable.

 

It will look like Fido's ***. Ideally to weld Ti it should be to another piece of Ti and should be in an inert atmosphere.

I have never seen anyone weld Ti to steel. I'm not saying it can't be done but, I would try to avoid if at all possible.

 

I would swap the catback before you try to weld to a Ti.

 

Use clamps instead.

 

if you can do that can you weld my cast iron exhuast back together for me?

 

Do a quick google search and you will see your answer.
As far as the Shuttle, Ti is structural and extremely light weight. Not used as a thermal protection system as that is the function of the carbon-carbon and tiles.