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RE: [PSUBS-MAILIST] 304 stainless

To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] 304 stainless
From: "Daniel Lance" <lanceind@earthlink.net>
Date: Fri, 27 Aug 2010 19:21:26 -0400
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Brian,
Yes , there is an easy DIY way. Go to www.koslow.com  ( or google Koslow
Scientific )   click on " metal test kits ", scroll down to the basic kit
for telling the difference between  316L and 304. This is the company I
have the most experience with .  I am sure if you did some hunting on the
internet you can find other vendors for a similar product .  
   Using paint or some type of "coating" is not recommended . Stainless
steel acts differently then Carbon steel .  SS must have a constant
exposure to oxygen or it rapidly decomposes in a saltwater enviroment.
Unlike Carbon steel which when you shut off the oxygen you limit the
oxidation process.
Dan




> [Original Message]
> From: Brian Cox <ojaivalleybeefarm@dslextreme.com>
> To: <personal_submersibles@psubs.org>
> Date: 8/26/2010 11:30:36 PM
> Subject: RE: [PSUBS-MAILIST] 304 stainless
>
> Dan,
>        Is there any way to test this stuff to determine what it is?
>
> Brian
>
> -----Original Message-----
> From: owner-personal_submersibles@psubs.org
> [mailto:owner-personal_submersibles@psubs.org]On Behalf Of Daniel Lance
> Sent: Thursday, August 26, 2010 4:53 PM
> To: personal_submersibles@psubs.org
> Subject: RE: [PSUBS-MAILIST] 304 stainless
>
>
> Brian,
> 304 stainless steel is not suitable for saltwater use . Below water it
will
> not have a very long service life . Above water if you have it electro
> polished you will have a little better luck, BUT there will be periodic
> maintenance involved. 316L is your best bet for the marine environment .
>
> Dan Lance
>
>
> > [Original Message]
> > From: Brian Cox <ojaivalleybeefarm@dslextreme.com>
> > To: Personal_Submersibles@Psubs. Org <personal_submersibles@psubs.org>
> > Date: 8/25/2010 9:30:50 PM
> > Subject: [PSUBS-MAILIST] 304 stainless
> >
> > Hi All,
> >          Has anyone had any experience with 304 stainless in a saltwater
> > environment?   I have access to a whole bunch of 2" tubing and some
other
> > odds and ends from a citrus processing plant ( where they made the
> > ingredients for 7 up !)  They have some valves as well that I might be
> able
> > to use for other purposes, other than used as valves.  I'm not really
sure
> > what grade the stuff is actually.  The pipe I'm guessing is 304, some
for
> > the other fittings may be a better grade like 316.
> >
> > Brian
> >
> >
> >
> >
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