Chrome Oxide Coatings

Chrome oxide coatings are dense, hard, wear resistant coatings that are applied with the Plasma coating process. This coating is often chosen for applications where wear resistance is needed while being exposed to chemicals. Chrome oxide also has excellent self-mating and anti-galling properties.

Chrome Oxide SEM Image

Chrome Oxide Coating Benefits

Wear resistance to abrasive grains, hard surfaces, particle erosion, and cavitation below 1000F
Insoluble in acidic, alkaline and alcohols
Withstands corrosive chemical environments when sealed up to 350 - 400F

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Applications of Chrome Oxide Coatings

Chrome oxide is a versatile coating that is commonly used for a number of industrial applications. In addition,
the coating is commonly used in the textile industry for any machine components that come in contact with fibers and/or threads. Chrome oxide coatings are ceramic coatings and are very hard, but can be susceptible to chipping if the coating is extended to a sharp edge of a component.
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Examples of Chrome Oxide Ceramic Coating Applications
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Mechanical Seal Surfaces
Pump Impellers
Pump Plungers
Textile Rolls and guides
Wear Sleeves
Wire Drawing Capstans
Exhaust Fans

Chrome Oxide Coated Wear Sleeve for Shaft

Coating Technical Data

‍The below data table highlights some typical chrome oxide coatings. Chrome oxide coatings exhibit excellent wear resistance and chemical resistance. The silica variation helps acts as a dampening agent which absorbs impact and helps to prevent grain loosening. If you have an application which can experience impact, chromium carbide coatings may offer a better solution.
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Coating
Formulation

Max Service
Temp

Cross Sectional Hardness (DPH300)

Macro Hardness (Rc)

Max Thickness
(in)

Chrome Oxide

1000F

900 - 1500

65 -70

0.025

Chrome Oxide Silica

1000F

900 - 1000

62 - 64

0.030

Chrome oxide coating applications that require smooth surface finishes are best finished with silicon carbide and diamond abrasives. Industrial Plating has cylindrical grinding and surface finishing capabilities and expertise to meet your requirements.

We have over 50 years of experience applying plating and coating on a vast range of industrial machinery and equipment. Contact Industrial Plating Company today, and learn about the options we have available.