Charles,
To electropolish SST, you are looking at a phosphoric acid based bath.

There are a few possibilities exist

1. Phosphoric acid -50 %
2. Glycerine - 50 %

Current density - 20 ASF, Temp = 200 F

or

Phosphoric acid - 50%
Sulfuric acid - 15%
current density =  50 ASF and Temp =100-175 F

You may have to tweak the current densities and temperatures around
based on the complexity of your part.
hope it helps
Amrit.

On Mon, 15 Nov 2004 14:44:12 -0600, Charles Becnel  wrote:
> I am trying to electropolish 416 stainless steel.  Does anyone have a good
> procedure to accomplish this?
>
> Sincerely,
>
> Charles
>
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