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"What specific gravity and iron content for electropolishing stainless steel?"



 1999

We electropolish stainless steel parts (300 series) in a 60% phosphoric, 20 % sulfuric, 20% di water solution, and at 100 amps/ft2. I have two questions; What is the operating range for specific gravity and dissolved iron?, and What type of cathode material is best for this bath? Thanks in advance.

Dave Bernardini
^


1999

We here at our company use a commercial product; 50 % vol. Phosphoric acid, 40 % vol. sulfuric acid and 10 % vol. of some secret stuff. We have been supplied with these figures:

At 20 °C:

and so on. It may depend on the composition of yourlyte, your amps, temperature, polishing time and so forth.

Hans Henrik Larsen
- .dk
^


2001

Hello Mr Bernardini.The stainless steel (316L) is better cathode for electropolishing of Steels.

H.Valizade
- Tehran, Iran
^

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