mild to stainless
Originally Posted by Brains
Yes, use 309L filler and you'll be fine.
Thread Starter
On The Tree
Joined: Aug 2005
Posts: 143
Likes: 0
From: Brooklyn, N.Y.
I'm going to try to weld some exhaust tubing and I'll be using a stick welder. I know its not going to be the best looking weld but its all i have. Can I use 304 stainless stick, and where can I buy these at? Thanks
304 will probably crack. You should always go up a grade or two in alloy for dissimilar metals, and with adding mild to the mix you have to be concerned with the mixed properties of all three metals.
TECH Apprentice
Joined: Jul 2004
Posts: 374
Likes: 1
309 is the right one to use when welding dissimlar steels when at least one is stainless, but it's hard to find, I almost never can and usually end up using 308/308L.
I'd love to find some 309LSi and some 409TSi, since they'd be just the deal for the typical stuff used for exhaust and headers and the Si wires flow out really nicely, even with plain old C25 making for pretty welds and saving time over TIGing
I'd love to find some 309LSi and some 409TSi, since they'd be just the deal for the typical stuff used for exhaust and headers and the Si wires flow out really nicely, even with plain old C25 making for pretty welds and saving time over TIGing
