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Plugs & Wear Plates

CARBON GRAPHITE PLUGS & WEAR PLATES

St. Marys Carbon custom manufactures a large variety of carbon and graphite grades for a wide range of wear applications. Our proprietary grades are necessary for many of the unique environments in which wear products are required. All of our products, from the blending of raw materials to the finished products, are made in-house by our specialized craftsmen.

We have the expertise to provide you with custom solutions to fit your specific application. Have you ever encountered technical issues or questions such as the below that requires an expert’s help?

What do you do when you require a product with multi-functionality that cannot be met with a monolithic material?
How do you enhance a metallic substrate to provide multi- level lubrication properties?

ENVIRONMENT, OPERATING CONDITIONS & APPLICATIONS

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 Composite Multi-Modal Lubricating Products 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.

  • Raw Material Extraction/Breakdown (e.g. (aggregates, sand, gavel, coal)
  • Recycling
  • Landscaping
  • Manufacturing Equipment (e.g., stamping dies)

HOW CAN WE HELP YOU ?

CARBON GRAPHITE PLUGS & WEAR PLATES DETAILS

Working Temperature

  • Minimum
    • Runs in cryogenic temperatures (no true minimum value)
  • Maximum
    • Carbon/Graphite up to 700 F
    • Electrographite up to 900 F
    • Electrographite with inorganic additives up to 1150 F
      • Other oxidation inhibitors (impregnants) up to 1200 F
    • In inert/neutral environments
      • Carbon/Graphite up to 1600 F
      • Electrographite up to 5000 F

Key Markets

Our wear plates and plugs are used across a wide range of different markets, including:

  • Agriculture
  • Environmental
  • Construction
  • Industrial
  • Mining
  • Power Generation

Average Oxidation & Chemical Resistance

  • Carbon grades are resistant to most chemicals

Spring Pressure Range

  • Application dependent

CARBON GRAPHITE GRADE

Grade

Application

49GLonger life & Cost effective solution
1GIntermediate
138GHighly self-lubricating material
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
9499.848,00022,000N/A1,60070045Wear Plates
199107.336,60010,5002.181,60065040Wear Plates
1G102.963,0004,500N/A10010030Graphite Plugs
138G112.323,8004,8001,7110010040Graphite Plugs

How carbon graphite will make your products & parts superior

Download Guide

Plugins & Wear Plates Data Sheet

Data Sheet

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Mechanical Seal

Carbon Graphite Mechanical Seal Types

Rotating equipment often requires a dynamic mechanical seal to create a seal between a rotating shaft and a stationary body and prevent the escape of process fluid(s) including liquid and/or gas. They can also be used in mixer seals to prevent fugitive ambient particulates from entering a contained vessel being being mixed such as a pharmaceutical reaction…

Bearing Life

Why Bearings Fail and How to Prevent It

All bearings have a fixed life expectancy. Some are replaced because of normal wear or spalling, and others need replacing because of premature wear or failure. An unexpected failure can cause damage to equipment, downtime, costly replacement, and possibly even injury. And, even before they fail, the premature wear is likely to have effects on performance …

Graphite Conductivity

Carbon Graphite Conductivity & Expansion

When deciding on the materials for carbon graphite components or parts, it all starts with a thorough review of the application which includes the components’ form/function/fit and property identifying the “must haves” and the “nice to haves” and melding these with a design for manufacturability. There are three important physical characteristics …

For more information about our services, call us at 814.781.7333

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