What kind of metal is our mufflers made of?
What kind of metal is the axle-back made of? Thinking of recycling my stock ones since I can't seem to sell them.
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Probably 400-series stainless.
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Originally Posted by Admiral Ballsy
(Post 1582205337)
Probably 400-series stainless.
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Aluminized steel. Stainless tips.
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The mufflers and pipes are stainless...I would have thought 300 series, but some have said 400 is more likely...either way, they are stainless.:thumbs:
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Quite awhile back, most OE stainless exhausts were the less-expensive 400 series---good but not great. And all the aftermarket ones were 300 series (I see Corsa's gone to a different, higher grade I think, and Borla doesn't even say which grade any longer except that it's in the 300 series).
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What ever they have been making them out of they have been lasting a long time. I haven't had to replace a muffler on a Corvette since I had my C3s back in the 70s. Even the ones on my 03 Tahoe are still in good shape after having salt and sand being blown all over them through 10 winters.
Bill |
According to the 2012-Corvette-Order-Guide.pdf the standard equipment exhaust is "aluminized stainless-steel with 3" stainless steel tips".
http://www.corvetteactioncenter.com/...rder-Guide.pdf . |
Take it to the recycle plant and they might have a scanner that they can tell you what series it is. :thumbs:
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Originally Posted by Joe B.
(Post 1582206607)
According to the 2012-Corvette-Order-Guide.pdf the standard equipment exhaust is "aluminized stainless-steel with 3" stainless steel tips".
http://www.corvetteactioncenter.com/...rder-Guide.pdf . |
Originally Posted by SmokinZ51
(Post 1582206631)
Take it to the recycle plant and they might have a scanner that they can tell you what series it is. :thumbs:
300 series are non-magnetic 400 series magnetic C6 mufflers are 400 series with 300 series tips |
Originally Posted by Don-Vette
(Post 1582205521)
400 series has carbon in it and will rust. 300 series stainless will never rust, it has no carbon in it. Not sure what ours is.
Simply put, without getting too in-depth, even 304 will rust! 316 contains carbon, which has higher rust resistance and material strength than the non-carbon 304. |
Originally Posted by victorf
(Post 1582207011)
That is incorrect generalization! It all depends!
Simply put, without getting too in-depth, even 304 will rust! 316 contains carbon, which has higher rust resistance and material strength than the non-carbon 304. |
Originally Posted by HOXXOH
(Post 1582207000)
Scanner? You mean like a magnet? :rofl:
300 series are non-magnetic 400 series magnetic C6 mufflers are 400 series with 300 series tips |
Originally Posted by victorf
(Post 1582207011)
That is incorrect generalization! It all depends!
Simply put, without getting too in-depth, even 304 will rust! 316 contains carbon, which has higher rust resistance and material strength than the non-carbon 304. as a general rule 300 series in products for the consumer market will be rust free an example would be Borla or Corsa mufflers. |
Originally Posted by CyberBullet
(Post 1582208086)
No, there is a gun that they scan the metal with and can tell you exactly what properties are in the metal and how much percentage. Dont know if all scrap yards use them but I deal with all types of steel fittings and sometimes we have to have these certifications done to fittings for customers that buy fittings for oilfield related items.
And for the record some stainless is magnetic so that doesn't always work. |
Originally Posted by Don-Vette
(Post 1582208145)
Not 304L or 316L :thumbs:
as a general rule 300 series in products for the consumer market will be rust free an example would be Borla or Corsa mufflers. An illustration, when someone erroneously suggest to use "0000" steel wool to polished Borla/Corsa tips, unless the removal of steel wool dust is absolute 100%, otherwise those tips will have rusted spot that will lead to pitting. In addition, any iron oxide in the air that landed on those "rust free" tips, if left protected, will suffered the same consequences! |
Never knew carbon rusts.
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Based on the costs for replacement exhausts, gold.
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Originally Posted by SmokinZ51
(Post 1582208193)
Bingo :thumbs:
And for the record some stainless is magnetic so that doesn't always work. 300 series (sometimes referred to as 18-8 stainless) is really the most appropriate for an exhaust because is most resistant to corrosion and it is probably the least expensive, unless it is 316L (low carbon for ultimate corrosion resistance like metal orthopedic implants). 400 series is stronger, but less corrosion resistant and more expensive because heat treatment is required. |
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