Carbon Graphite Material Products | St Marys Carbon


Carbon Graphite materials are a composite of different carbon materials and inorganic additives which have exemplary performance in demanding applications in either wet or dry applications. Carbon Graphite Materials are preferred for many different applications because of their unique combination of characteristics:

  • Low Wear and Coefficient of Friction for Tribological Applications
  • Self-Lubricating
  • High Thermal Conductivity
  • Low Coefficient of Thermal Expansion
  • Low Electrical Resistivity (or High Electrical Conductivity)
  • High Strength at High Temperatures
  • Chemical Resistance
  • Oxidation Resistance
  • High Young’s Modulus
  • Lightweight
  • Relatively Inexpensive

Carbon Graphite materials are porous as produced and are often impregnated or have a coating applied to impart additional characteristics such as imperviousnessincreased strength, and Thermal Conductivity.

Impregnants include: Resins, Antimony, Copper, Silver, Babbitt, Bronze and other Inorganic materials

Common Coatings include: TeflonTM, Pyrolytic Carbon or Pyrolitic Graphite, Silicon Carbide, Diamond Like and Diamond Coatings

Custom Components & Parts

We develop parts that are customized to each of our customer’s specific application requirements. Our unique technical knowledge and manufacturing expertise allows us to customize parts within our existing product line or as part of our new product development.

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Carbon Material Blanks

St. Marys Carbon custom manufactures the highest quality carbon graphite materials. We have electro-graphite, metal graphite, copper graphite, silver graphite, carbon graphite and resin-bonded materials to suit your specific application. All of our products, from the blending of raw materials to the finished products, are made in-house by our specialized craftsmen.

*St. Marys Carbon is a custom solution provider. No matter your application or product needs, contact us and we will find a solution.

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Rotors and Vanes

St. Marys Carbon manufactures rotors & vanes from superior carbon graphite grades for a variety of applications. Our Rotors & Vanes are made from specialized, proprietary materials that are required for many of the unique environments in which rotors & vanes are used. All of our rotors & vanes, from the blending of raw materials to the finished product, are made in-house by our specialized craftsmen.

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Mechanical Seals

St. Marys Carbon custom manufactures a variety of seal grades to suit any sealing application. We offer blank stock, various types of impregnations, intricately machined seals, non-polished seals, and polished seals. Our mechanical seals are used in a variety of pumping applications and are especially beneficial in any type of dry-running, harsh (e.g., high temperature, chemically corrosive) and sanitary environments.

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Bearings / Bushings

St. Marys Carbon custom manufactures many sizes, shapes and quantities of bearings / bushings, including radial, thrust/axial and sleeve. Our bearings / bushings are used in a variety of pumping applications and are especially beneficial in any type of dry-running, sanitary environments and harsh conditions (e.g., high temperature, chemically corrosive).

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Automotive Brushes

Our carbon graphite automotive brushes are used for both OEM and aftermarket applications, including light, medium and heavy duty vehicles, as well as motorcycle applications. We offer plain brushes or complete brush assemblies to meet your specific needs.

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Industrial Brushes

Our carbon graphite industrial brushes are used for both the OEM and aftermarket motor applications. This includes light and heavy duty equipment, power generation (e.g., turbines), rail systems, material handling equipment, elevators, appliances, power tools and a variety of other applications requiring electrical transmission.

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HALO™ Turbine and Compressor Rings

St. Marys Carbon manufactures HALO turbine & compressor rings for a wide range of turbines, compressors, blowers and fans. St. Marys Carbon HALO rings are widely recognized within both the OEM and aftermarket industries and is the preferred supplier of many major manufacturers. Our HALO rings are used in a variety of industries, including Aerospace, Chemical, Industrial, Oil & Gas, Power Generation, Renewable Energy and Steel.

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