What Are the Benefits of Zinc Nickel Plating?
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Iron and steel metals, despite their strength, are prone to oxidization (rust formation). As rust sets in, the metals corrode, fatigue, and break down. To slow the oxidation process and make the metal parts last longer, zinc is used as an agent to coat them. In fact, almost half of all the zinc mined is used in the iron and steel galvanizing process.
However, zinc alone provides only 100 HV of hardness which is fairly soft and not durable enough for today’s demand for high corrosion protection. Adding nickel to zinc resulted in a mixture with a far superior strength of 400 HV. The increase in strength alone would have been sufficient for nickel-zinc plating coat to become the standard in the metal industry, but the alloy also has other benefits.
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DeKalb Metal Finishing
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