How to remove black oxide coating from stainless steel?
. I have to remove a black oxide coating from some stainless steel plates. The plates are fairly small (2 in square), and have multiple tapped holes which make sandblasting impracticle. Would electropolishing or pickling do this? Tim Pentowski – Norwood, MA +++++ Use a medium to rough grit piece of emery cloth and lots of cutting oil. I have done this myself to remove black oxide from a 3/16 inch piece of steel and it worked great. Nicholas Simonian – Hickory Hills, IL, United States Post a question on a different subject. Answer this question (in non-commercial fashion).