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| Date: | Mon, 16 Apr 2007 06:40:00 -0700 |
| Content-Type: | text/plain |
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I wouldn't recommend it even if you had to pay for them. Use Titanium.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Ellis
Sent: Monday, April 16, 2007 12:58 AM
To: [log in to unmask]
Subject: Re: [TN] stainless compatibility in alkaline etchant
I would not recommend stainless steel where there are free chloride
ions. Use titanium.
Brian
Adam Seychell wrote:
> Does anyone know if stainless steel 316 corrodes when exposed to
> alkaline ammonia chloride etchants ? I have this diaphragm pump with
> internal stainless steel fasteners which are exposed to the etchant.
The
> pump elastomers are EPDM and santoprene, and body material is glass
> filled polypropylene. I am wondering if the pump can be used for
> alkaline etchants.
>
> For a test I placed some stainless steel in etchant at let standing
for
> one week. There was no visible surface corrosion, nor any measurable
> mass loss. I know this doesn't tell me I can use the pump and expect
it
> to last.
>
>
> best regards,
> Adam Seychell
>
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