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.
Our turbine and compressor rings are made from the following materials:
We also offer various impregnations and treatments to further fit your application needs.
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.
|Grade||Density(lbs./ft.3)||Flexural Strength (psi)||Compressive Strength (psi)||Coefficient of Thermal Expansion (µ/°F)||Temperature Limit Neutral (°F)||Temperature Limit Oxidizing (°F)||Scleroscope Hardness||Applications|
|49||99.84||4,000||9,800||1.91||1,500||650||45||Turbine & Comp. Rings|
|49C||112.32||7,000||22,000||2.30||500||500||55||Turbine & Comp. Rings|
|75||106.08||8,100||21,500||2.80||3,000||750||80||Turbine & Comp. Rings|
|117||102.96||3,600||9,000||2.01||5,000||850||40||Turbine & Comp. Rings|
|35||109.20||7,000||17,500||2.40||5,000||850||60||Turbine & Comp. Rings|
|35AH||109.20||7,500||17,000||2.40||1,500||1,150||65||Turbine & Comp. Rings|
|219||110.45||10,000||25,000||2.54||1,600||700||75||Turbine & Comp. Rings|
|185||111.70||7,700||19,000||2.20||500||500||72||Turbine & Comp. Rings|
Greatly reduces failure rates and allows for use in sanitary environments due to its self-lubricating properties.
Maintains high strength and runs effectively without failure at high temperatures.
Allows for heat exchange to prevent overheating.
Resists wear and reduces friction as it is chemically inert, oxidation-resistant and self-lubricating.
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.
You can find our HALO™ turbine and compressor rings are used across a wide range of different markets, including: