Catalytic convertor case material

SHughes

SHughes

Too much is never enough!
What is the case made of on a catalytic convertor on a gasser, specifically a 2012 Subaru? Stainless perhaps?

Wondering if I can weld this back up. I don't want to replace this entire header crossover cat combo.

You can see how little of the case is holding this together.
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I've done a lot with catalysts professionally. I could all but guarantee it is a 300 series stainless. From an OEM side, we typically use 309L for the filler rod.

If it has a stainless substrate, then the mantle is definitely stainless.
If it has a ceramic substrate, then the mantle is extremely likely to be stainless.
:Cheer:

dummins said:
I’d assume it’s stainless.
Click to expand...
This
joefarmer said:
Even if it's not stainless, welding it with a 308L should work.
Click to expand...
And this
 
CorneliusRox said:
I've done a lot with catalysts professionally. I could all but guarantee it is a 300 series stainless. From an OEM side, we typically use 309L for the filler rod.

If it has a stainless substrate, then the mantle is definitely stainless.
If it has a ceramic substrate, then the mantle is extremely likely to be stainless.
:Cheer:


This

And this
Click to expand...

Perfect...thanks a lot!!!
 
130,000 plus miles.

It aint purdy but it should hold...no parts stores had the gaskets. Supposed to get here tomorrow.
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