Stainless steel finishing
Stainless steel finishing
(OP)
Can any one recommend me with what is the best way to finish stainless steel besides mirror polish? The application will be used for food containers and anything related to food industry. What about sandblasting or chemical finish?





RE: Stainless steel finishing
Electropolished piping is also used to ensure purities of gases and liquids used in the semiconductor industry.
Please see the article “Electropolishing” by Ken Hensel, which gives advantages of the process along with descriptions of the equipment and chemical solutions used:
http://www.metalfinishing.com/WZ/MetalFinishing/guidebooks/MetalGB_SurfaceTreatments/000013/show/
You can find some jobshops doing electropolishing at
http://www.finishing.com/Shops/index.html
Very good, illustrated descriptions of electropolishing are at these sites:
http://www.ableelectropolishing.com/electrop.htm
http://electromatic.com/
Electropolish Systems sells both chemicals and equipment:
http://www.ep-systems.com/index.html
RE: Stainless steel finishing
My question is can electropolishing be dull looking? Instead of bright finishing?
RE: Stainless steel finishing
This fine scale roughness will increase the surface area available for adsorption of contaminants, and provide greater potential for retention of microbes. You may be defeating your purpose.
You can generate a dull surface in stainless steel by etching in nitric acid with additions of etching salts, which are flourides.