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The difference between galvanizing and chromium plating

  • Author:Vangel
  • Release on:2023-09-21

The difference between galvanizing and chromium plating are as follows:

  1. Material: Galvanizing involves applying a layer of zinc onto the surface of steel or iron, while chromium plating refers to the process of adding a layer of chromium onto a metal surface.

  2. Corrosion protection: Galvanizing relies on the corrosion resistance of zinc. When zinc reacts with oxygen in the air, it forms a dense layer of zinc oxide, which acts as a barrier between the steel or iron and the surrounding environment, preventing corrosion. Chromium plating, on the other hand, enhances the corrosion resistance of the metal due to the inherent properties of chromium.

  3. Appearance: Galvanized coatings typically have a silver-white or slightly bluish-gray color and a relatively rough texture. Chromium plating, on the other hand, results in a silver-colored, high-gloss surface with a smooth finish.

  4. Applications: Galvanizing is commonly used in industries such as shipbuilding, construction, automotive, and power transmission, where corrosion protection for steel or iron is needed. Chromium plating is often applied in the manufacturing of stainless steel products, automotive components, and household items.

In summary, galvanizing and chromium plating are different metal processing techniques that vary in terms of material, corrosion protection, appearance, and applications.

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