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Date:         Tue, 22 Jul 2008 16:47:37 -0700
Reply-To:     BenT Syncro <syncro@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         BenT Syncro <syncro@GMAIL.COM>
Subject:      Re: The DEEP, DARK secret of fiberglass exhaust wrap discovered
In-Reply-To:  <71d9cdf90807221514w69d0cc31q2e3ad7d366005505@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Sorry, I was not allowed to take ESL courses. Forced to take regular Engirlish. That is why my grandma is brokerted.

BenT

On 7/22/08, Jake de Villiers <crescentbeachguitar@gmail.com> wrote: > > Nicely put Ben, your ESL teacher must be proud. :) > > I'd go for the thickest ones or Terry's 2-piece units.... > > On Tue, Jul 22, 2008 at 2:11 PM, BenT Syncro <syncro@gmail.com> wrote: > >> On 7/22/08, Scott Daniel - Turbovans <scottdaniel@turbovans.com> wrote: >> >> >> >> stainless has a lot of properties that make it not as good as steel in >> many applications. >> >> >> I just want to interject something. Stainless steel is still steel. You >> must >> mean mild or carbon steel. >> As I understand it, stainless steel is nothing more than carbon steel with >> some chromium added to >> mix. As the chromium oxidizes, it forms a protective layer onto >> the iron/steel in the alloy in a similar >> way that zinc coated steel (galvanized) forms a protective layer over the >> steel when the zinc turns >> into zinc oxide. The difference, of course, is the chromium is >> 'throughout' >> the material. It's in the >> alloy. My best non-metal comparison I can think of are countertops. In >> Corian (and similar types) the >> coloring is throughout the material vs. laminated tops such as Formica >> (and >> similar types) which only >> has coloring close to the surface. Corian would be similar in wear >> characteristics as stainless steel. >> Surface wears (chromium turns to chromium oxide) but it's still Corian >> through and through. Formica >> wears out (zinc in galvanized steel turns to zinc oxide) and eventually >> the >> material of the countertop >> is no longer protected. Same case with the metals. Stainless steel just >> keeps going in going but not >> forever. Eventually the material gets thin enough and as some have pointed >> out - rusts through. >> >> The amount of chromium content will determine at what rate the stainless >> steel will deteriorate. Why not >> dump more chromium in the mix? Well, chromium is not as strong as carbon >> in >> steel. The more chromium, >> the weaker the material. Like anything else, it's a balancing act of >> anti-corrosive properties vs. strength. >> Which brings me to the Vanagon application. Vendors offer not just >> different >> alloys of stainless steel but >> different gauge as well. Since there is no independent testing of the >> durability of these products, it would >> be good for someone to start tracking how well these commercially >> available >> systems are holding out. You >> know... more chromium wears longer from a corrosion point of view. But >> they >> wear faster as in from cracks >> due to metal fatigue, etc. >> >> Aw, what do I know. I'm no metallurgist. English isn't even my first >> language. Steel, steal, sounds the same >> to me. >> >> >> >> BenT P. Ipez >> > > > > -- > Jake > 1984 Vanagon GL > 1986 Westy Weekender "Dixie" > Crescent Beach, BC > www.crescentbeachguitar.com > http://subyjake.googlepages.com/mydixiedarlin%27 >

-- BenT


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