Black Oxide Coating – A Durable, Decorative Conversion Finish
Black oxide coating is a chemical conversion coating that forms a thin layer of magnetite (Fe₃O₄) on the surface of ferrous metals. This finish offers mild corrosion resistance, enhanced aesthetics, and improved lubricity when combined with post-treatments like oil or wax.Black oxide is commonly used on tools, fasteners, automotive parts, firearms, and precision components where a uniform black appearance, dimensional stability, and light corrosion protection are required.
Key Features:
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Matte black, smooth finish with minimal dimensional change
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Provides mild corrosion resistance (enhanced with oil or wax sealants)
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Reduces light reflection and glare
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Improves lubricity and break-in for mating components
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Economical and fast surface treatment
