Structural and electronic properties of chromium carbides ...

Tungsten/Chromium Carbide Coatings

Our coating formulations are designed for optimal effectiveness using our thermal spray application process. Our CarbideX coating formulations combine tungsten carbide with carefully selected alloys or metals to provide the most economical wear solutions available.

The type of carbide and its volume percentage are critical for the abrasion resistance of any material used for wear applications. Cemented carbides consist of carbide particles bonded with metals, usually cobalt or nickel. Although the hardness varies, all cemented carbides are harder than the toughest metals. Tungsten carbide, with a Vickers hardness number equivalent to 85 HRC, comprises 90% carbide particles by weight and 80% by volume. In contrast, most standard wear-resistant alloys contain a maximum of 35% softer chromium carbide by volume.

We offer various coating formulation options, primarily tungsten carbide (C, CNi, C) and chromium carbide (C). The primary difference among these coatings is their maximum service temperature limitations. Tungsten carbide has a maximum temperature rating of 730°F (400°C), while chromium carbide’s rating is 725°F (400°C). Chromium carbide is particularly effective in applications where significant corrosion is expected or elevated process temperatures are required, such as in cleaning ovens.

C is a unique product optimized for fine particle abrasion resistance. In this material, 30% of the tungsten carbide particles are sub-micron sized. These smaller carbide particles help occupy the spaces between the standard 2-5 micron-sized particles, resulting in an additional 25% wear resistance. C is suitable for applications in metal injection molding, ceramic molding, and scenarios where high loadings of fine particulates accelerate wear. Contact us to learn more about the best formulation match for your application!

Here are the characteristics of our various coatings:

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