Letter 39074

Electroless chemical polishing of stainless steel parts [Canada] 

January 17, 2006

Hi.
I'm looking for a simple process to polish tiny parts that cannot be polished mechanically.
The volume is low, there is no industrial scale production.
I know that a mix of acids and maybe other additives would do the job, but I don't know which and the proportions.
I would appreciate any help I can get.
Thanks,

Dan B.
Metal finishing - ON, Canada

You can use next solution:
10% phosphoric acid
10% hydrochloric acid
5% nitric acid
75% water
(80 C temp.,add 10 gm soot,5 minutes immersion)
Good luck!

Goran Budija
- Zagreb, Croatia

May I know that is it the above only suitable for 300series SS? How about 400series SS?

Leonard Yong
Precision (Hardware) - Singapore

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