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Removing coating after hardening A2 tool steel

thread338-32931

Removing coating after hardening A2 tool steel

Removing coating after hardening A2 tool steel

(OP)
I looking for a method to remove the black film coating (carbon?) from A2 tool steel after it has been hardened to Rc50 without destroying the substrate.  I know grit blasting or using scotch brite works, but I'm hoping there is a chemical I can use instead.  Is anyone familar with how to accomplish this?
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