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Old 03-19-2018, 01:18 PM   #1
SHughes
 
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Catalytic convertor case material

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.Click the image to open in full size.Click the image to open in full size.

Sent from my LGLS991 using Tapatalk
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Old 03-19-2018, 01:26 PM   #2
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I’d assume it’s stainless.
 
Old 03-19-2018, 01:30 PM   #3
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Id assume its stainless.
I would too. But before I go buy some SS TIG rod, I would like to know for sure.

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Old 03-19-2018, 01:51 PM   #4
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Even if it's not stainless, welding it with a 308L should work.
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Old 03-19-2018, 02:01 PM   #5
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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.


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Id assume its stainless.
This
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Even if it's not stainless, welding it with a 308L should work.
And this
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Old 03-19-2018, 02:02 PM   #6
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Thanks Brandon...I'll go pick some up just to be safe.
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Old 03-19-2018, 02:03 PM   #7
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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.



This

And this
Perfect...thanks a lot!!!
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Old 03-19-2018, 02:26 PM   #8
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How many miles on it? Cat’s are typically 8 years 80,000 miles covered under warranty....
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Old 03-20-2018, 08:45 PM   #9
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130,000 plus miles.

It aint purdy but it should hold...no parts stores had the gaskets. Supposed to get here tomorrow.Click the image to open in full size.

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Old 03-21-2018, 09:32 AM   #10
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Looks pretty perfect to me!
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