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Carbon Graphite Turbine and Compressor Rings

St. Marys Carbon manufactures HALOTM turbine & compressor rings from superior carbon graphite grades, including carbon graphite, electrographite and resin-bonded graphite for a variety of applications. St.Marys Carbon is widely recognized in this industry and is the preferred supplier for many major manufacturers.

All of our turbine & compressor rings, from the blending of raw materials to the finished product, are made inhouse by our specialized craftsmen.

Materials

Our turbine and compressor rings are made from the following materials:

We also offer various impregnations and treatments to further fit your application needs.

Custom Solutions

Our HALO rings can be custom-manufactured to your specific requirements. We develop our own proprietary grades and manufacture each product in-house, so we will work closely with you to create a product that is right for you.

GradeDensity(lbs./ft.3)Flexural Strength (psi)Compressive Strength (psi)Coefficient of Thermal Expansion (µ/°F)Temperature Limit Neutral (°F)Temperature Limit Oxidizing (°F)Scleroscope HardnessApplications
4999.844,0009,8001.911,50065045Turbine & Comp. Rings
49C112.327,00022,0002.3050050055Turbine & Comp. Rings
75106.088,10021,5002.803,00075080Turbine & Comp. Rings
117102.963,6009,0002.015,00085040Turbine & Comp. Rings
35109.207,00017,5002.405,00085060Turbine & Comp. Rings
35AH109.207,50017,0002.401,5001,15065Turbine & Comp. Rings
219110.4510,00025,0002.541,60070075Turbine & Comp. Rings
185111.707,70019,0002.2050050072Turbine & Comp. Rings

For more information about our services, call us at 814.781.7333

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KEY ADVANTAGES OF ST. MARYS CARBON HALO RINGS:

Dry-Running / Oil-less

Dry-Running / Oil-less

Greatly reduces failure rates and allows for use in sanitary environments due to its self-lubricating properties.

High Temperature Stability

High Temperature Stability

Maintains high strength and runs effectively without failure at high temperatures.

High Thermal Conductivity

High Thermal Conductivity

Allows for heat exchange to prevent overheating.

LOW FRICTION / WEAR

LOW FRICTION / WEAR

Resists wear and reduces friction as it is chemically inert, oxidation-resistant and self-lubricating.

KEY END PRODUCTS

Our HALO rings are used in a wide range of end products as listed below. Remember that we custom-design our products to fit your needs, so please contact us if you have a need outside of those below and we’ll work with you to find a solution.

  • Gas Turbines
  • Steam Turbines
  • Hydro-Electric Power
  • Wind Turbines
  • Centrifugal Compressors
  • Axial Compressors
  • Reciprocating Compressors
  • Blowers/Fans

WE MAKE THE GRADE PRODUCTS CAN BE CUSTOMIZED TO FIT YOUR NEEDS! Learn More

KEY MARKETS

You can find our HALO™ turbine and compressor rings are used across a wide range of different markets, including:

  • Aerospace
  • Chemical
  • Industrial
  • Oil & Gas
  • Power Generation
  • Renewable Energy
  • Steel