Date: Wed, 28 Nov 2001 21:39:04 -0500
Reply-To: Vanagon Man <puzerewski@MSN.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Vanagon Man <puzerewski@MSN.COM>
Subject: Re: Missing Exhaust bolts
Your examples of stainless that you are showing, mainly alloy 409 and 410
are not corrosion resistant. I have scrapped many a ton of those alloys as
a Naval shipyard closed in my city. Stronger than steel, yes, and more of a
gray color than a shiny stainless we are used to seeing.
316l, on the other hand is strong. It is also more difficult to obtain tin
the form of the bolts that we would need for exhaust. A lot of people would
be sold lesser grade 301 without ever knowing the difference, and only a
reputable bolt supplier could honestly provide you with the right
stuff.......visibly they look exactly the same.
A quick test for good stainless is to have a little magnet on a string or
chain. If the magnet pulls ever so slightly to the stainless, it is most
likely a better grade than 301 most likely 316, unless dealing with a
chemical plant or something. This is a generalization for practical
purposes, for not all of us are chemical engineers or metallurgists here. A
lot of us on the list are plain folk that either are mechanics full time or
shade tree that have a lot of hands on experience. I may not be a
metallurgist or a chemist, but I have crawled under more than my share of
vanagons, bugs, busses and other things to get the engineering types back on
the road that could not pull their own wrench to get out of Harlem at
midnight.
Adam P
81 westy (3 of them)
74 beetle
73 Transporter (at paint shop!)
70 Single Cab "Whitey"
Vanagon Partsmobiles
----- Original Message -----
From: "Keith Adams" <lkadams@telusplanet.net>
To: "Vanagon Man" <puzerewski@MSN.COM>; <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, November 28, 2001 6:08 PM
Subject: Re: Re: Missing Exhaust bolts
> Adam -
>
> As a metallurgist, I object strongly to the poppycock you just posted ;-)
I've
> had this argument with our resident chemist Mr. Pollard before.
>
> Please see my post in the archives for enlightenment:
> http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind0012B&L=vanagon&P=R12840
>
>
> Keith Adams
> Calgary, AB, CA
>
>
> >Stainless steel is not stronger than steel. It is more brittle. Stick
with
>
> >high grade steel fasteners for jobs such as this. Leave stainless for
the
>
> >ornamental stuff (screws holding in mirrors, etc)
> >
> >Adam P
> >81 westy (3 of them)
> >74 beetle
> >73 Transporter (at paint shop!)
> >70 Single Cab "Whitey"
> >Vanagon Partsmobiles
>
| 
