|
|
Can't tell for sure, but 321 is not as shinny as 304, which I guess has more
nickel or something. I'm not a metal guy so maybe someone else can pipe up.
Although it is possible it polish both, I think the 321 will still have a
darker hue.
Really just a guess, but I can tell for sure that they are not cast iron
:-)
The exhaust pipe in the attached picture is 321 stainless.
Dave Leonard
daveleonard@cox.net wrote:
> Those manifolds are on e-bay perpetually. I would not trust
one for aircraft use. The cast iron manifolds, although heavier,
are going to be much more reliable than the thin walled SS. That
manifold looks like it is made from 304 stainless and not the
more heat tolerant 321.
>
> Dave Leonard
>
How can you tell the allow by a picture? What's the give-away?
|
|