Chromium Carbide Coatings

Industrial Plating Company uses chromium carbide coatings to give our customers a way to protect their components and machinery from abrasive wear in high temperature and corrosive environments. Applied typically through HVOF spray technology, chromium carbide is comprised typically of powdered tungsten, cobalt, and chromium.

A close-up grayscale SEM image of Chromium Carbide showing spherical particles with a rough surface and numerous tiny bumps.

Chromium Carbide SEM Image

Chromium Carbide Coating Benefits

Chromium Carbide Coating Benefits Chromium Carbide coatings result in a dense, well-bonded, very hard coating that is well suited for fretting and abrasive wear and hard surfacing. These coatings stand up to high temperatures and can offer resistance to corrosion, heat and oxidation in temperatures up to 930F.

The benefits of a chromium carbide coatings applied with the HVOF process include:

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Abrasive wear and Corrosion resistance
Better performance at higher operating temperatures
Smooth surface/ Low porosity
High bond strength

Applications of Chromium Carbide Coatings

Chromium Carbide coatings typically solve industrial challenges such as wear, abrasion, and erosion similar to Tungsten Carbide coatings. However, the chromium carbide family of coatings differentiates itself in being able to perform better in corrosive environments.

Chromium carbide coatings are typically applied to oil field equipment such as gate and ball valves, high wear areas of down hole equipment.
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Example Chromium Carbide Applications
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Coating
Formulation

Application
Examples

Performance
Characteristics

Tungsten Carbide 10% Cobalt 4% Chromium
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Corrugating rollers, pump seals, hydraulic rods, pump piston rods, compressor shafts, paper and textile rolls, hard chrome alternative.

Provides good wear and corrosion resistance.

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Chromium Carbide 37% Tungsten Carbide
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Pumps housing and impellers, boiler tubes, and chemical processing plant equipment components
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Good wear resistance with better corrosion resistance in alkaline, sulfuric, or saline solutions

Chromium Carbide 25% Nickel Chromium
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Hydraulic cylinders and piston rods, valve stems, turbine components, pump housings
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Good wear resistance and excellent corrosion resistance in NaOH, NaCl and acidic environments. Avoid HCl solutions.

Tungsten Carbide 9% Cobalt 5% Chromium 1% Nickel
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Mining rollers, pump seals, paper and textile rolls, hydraulic cylinders, hard chrome alternative.
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Good wear resistance with excellent corrosion protection in NaCl, good in HCl, sulfuric, and sodium hydroxide.

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‍Coating Technical Data
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Coating
Formulation

Max Service
Temp

Micro Hardness (HV0.3)

Macro Hardness (HR15N)

ASTM G65 B Wear Rate (cubic inches)

Tungsten Carbide 10% Cobalt 4% Chromium

930F

750 - 1450

> 90

< 0.00024

Chromium Carbide 37% Tungsten Carbide

1290F

1050 - 1250

> 92

< 0.00024

Chromium Carbide 25% Nickel Chromium

1600F

850 - 1200

> 90

< 0.00055

Tung. Carbide 9% Cobalt 5% Chrome 1% Nickel

930F

1050 - 1400

> 92

< 0.00024

Chromium carbide coating applications that require smooth surface finishes must be ground with diamond abrasives. Industrial Plating has cylindrical grinding and surface finishing capabilities and expertise to meet your requirements.

These are just a small sample of the coatings that we offer. Additional materials with different performance properties are available to meet the specific needs of your application.

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 chromium carbide uses and the options we have available.