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Question by pppp: Plastic Mold Steel Material 2083 ESR polishability?
I want to use 2083 ESR steel material for Plastic Injection Molds for Optical Mirror Finish components . Is it advisable ?. If not why ? If yes also Why ?

Best answer:

Answer by Lee G
It’s a good choice. It’s a martensitic stainless steel, so it’ll be hard, which makes for good polishing (the softer metals tend to tear and smear). Plus it also has limited carbides, which is what makes 440C so bad for polishing. The electroslag remelting makes for a clean steel, as well- very few inclusions.

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