High-strength blackened gasket
High-strength blackened gasket is a gasket that forms a black Fe₃O₄ oxide film on the surface of alloy steel through chemical oxidation (blackening treatment), with a film thickness of about 0.5-1.5μm. Its base material is usually 65 manganese steel or 42CrMo alloy steel, and after quenching + tempering treatment, the hardness can reach HRC35-45.
Colored zinc-plated gaskets
Colored zinc-plated gaskets are passivated on the basis of electrogalvanizing to form a rainbow-colored passivation film (containing trivalent chromium or hexavalent chromium) with a film thickness of about 0.5-1μm. Its anti-corrosion performance is significantly better than ordinary electrogalvanizing, and the surface color is bright, with both functionality and decorativeness.
Electroplated galvanized gaskets
Electroplated galvanized gaskets are gaskets that deposit a zinc layer on the surface of carbon steel or alloy steel through an electrolytic process. The thickness of the zinc layer is usually 5-15μm. Its surface is silvery white or bluish white, and it has both anti-corrosion and decorative functions. It is one of the most commonly used surface treatment methods in the industrial field.
Gasket Series
Our company mainly produces and sells various power bolts, hoops, photovoltaic accessories, steel structure embedded parts, etc.
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