Stainless Steel Black Round Bar coated with black oxide are nothing more than metallic bars. As a conversion coating, black oxide can be applied to many alloys, including ferrous materials, copper and copper-based alloys, stainless steel, Alloy Steel Black Bar, powdered metal, and zinc.
The use of black oxide on Nickel Alloy Black Bar reduces light reflection. Carbon Steel Black Bar requires an emulsified black oxide coating with a substrate such as oil or wax to achieve maximum corrosion resistance.

Comparatively to other coatings, black oxide coat on Duplex Black Bar has a minimal buildup. Black oxide can be applied to ferrous materials, such as SS Black Square Bar, using any of the following methods: hot black oxide, mid-temperature black oxide, or cold black oxide. Caustic, oxidising, and sulphur salts are used to blacken 300 and 400 series SS Black Rods and precipitation hardening alloy 17-4 PH

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