Re: [alfa] Stainless

[Mark Denovich <mark@xxxxxxxxxxxx>]

Darren Leung wrote:

> I'd hate to see this topic digress to the point of people believing that
> 'quality stainless' is brittle, and that's that.  There are many, many types
> of stainless out there, some less brittle than others, and a simple google
> search yields this page:
> http://www.cozeburn.com/stainless.asp
Why not go straight to the exhaust experts:
http://www.burnsstainless.com/TechArticles/Stainless_article/stainless_article.html
(wow, they sell really neat stuff...   I really want to get a TIG welder 
  now.)

Also, to really keep stainless from rusting it should be "pickled" after 
it is machined or welded.   The pickling process uses nitric acid to eat 
away the top layer of Iron atoms leaving behind a surface with a much 
higher ratio of chromium atoms... these quickly oxidize to produce the 
durable rust proof coating that keeps SS from rusting.    This is why 
you also should NOT use steel wool on stainless as you can embed bits of 
Fe on the surface of the SS and it will start to rust (although slowly.)

--Mark
The Alfa Wiki: http://alfa.denovich.org
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