Black Flat Washers

The black flat washer is usually made of carbon steel or stainless steel, which have good strength and corrosion resistance. It has a black appearance, and this black color is usually formed by surface treatment. For example, the common blackening treatment, which is a chemical oxidation treatment, through the formation of a layer of black oxide film on the surface of the washer to change its appearance color. This oxide film not only plays a decorative role, but also improves the rust resistance of the washers to a certain extent.

We have established a perfect corrosion resistance testing system, and conduct strict chemical resistance tests and other tests on each batch of black flat washers. Ensure that the washers have no obvious rust and corrosion traces after the test, and only the products that pass the test can enter the market, so as to ensure that every washer received by customers has reliable corrosion resistance. We also provide customers with full life cycle cost analysis services for black flat washers to help them understand the cost components and potential risks at each stage of product procurement, installation, use, maintenance and replacement.

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