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Engineering Graphite Materials
Graphite is a crystalline form of the Native Element Carbon and is the most thermodynamically stable form of Carbon at standard temperatures and pressures.
Having properties of both metals and non-metals makes Graphite a unique material. It is flexible but not elastic, has high thermal and electrical conductivity, and is highly refractory and chemically inert.
We provide Engineering Graphite Materials in numerous grade groups and used in a variety of industrial applications where each grade group has unique physical and intrinsic mechanical properties that can be harnessed for specific applications.
Typical grades available are intended for Electrical Discharge Machining (EDM), Industrial and Semiconductor applications.
General Applications
- Photovoltaic, Electronics and Semiconductors Manufacturing
- High Temperature and Electrical Vacuum Furnaces
- Manufacturing of Non-Ferrous Metals
- Moulds
- Glass
- Quartz
- Artificial Diamond Tools
- Automotive and Mechanical Seals, Pumps and Compressors
- Electrical Carbon Brushes for Vehicle Grounding Devices
- Light Manufacturing Process Fixtures
- Wax Bonded for Machining Expensive Materials
Typical Specifications for Graphite Grades
Die Moulded Graphite (For Industrial Applications)
Grade | Density | Flexural | Compressive Strength | Shore Hardness | Open Porosity |
| Thermal Expansion Coefficient |
| – | g/cm3 | MPa | MPa | – | % | µΩm | 10-6/°C |
| MI65 | 1.65 | 19 | 50 | 50 | 22 | 13 | 2.6 |
| MI78 | 1.78 | 27 | 60 | 50 | 20 | 13 | 2.6 |
| MI83 | 1.83 | 35 | 70 | 55 | 17 | 13 | 2.6 |
Vibrated Graphite
Grade | Density | Flexural | Compressive Strength | Shore Hardness | Open Porosity |
| Thermal Expansion Coefficient |
| – | g/cm3 | MPa | MPa | – | % | µΩm | 10-6/°C |
| V70 | 1.70 | 13 | 30 | 50 | 22 | 8.5 | 2.5 |
| V73 | 1.73 | 15 | 32 | 55 | 19 | 8.5 | 2.5 |
Extruded Graphite
Grade | Density | Flexural | Compressive Strength | Shore Hardness | Open Porosity |
| Thermal Expansion Coefficient |
| – | g/cm3 | MPa | MPa | – | % | µΩm | 10-6/°C |
| E60 | 1.60 | 7 | 15 | 30 | 22 | 6.5 | 2.6 |
| E72 | 1.72 | 7.5 | 20 | 35 | 19 | 7 | 2.8 |
Isostatic Pressed Graphite
Grade | Density | Flexural | Compressive Strength | Shore Hardness | Open Porosity |
| Thermal Expansion Coefficient |
| – | g/cm3 | MPa | MPa | – | % | µΩm | 10-6/°C |
| I76 | 1.76 | 36 | 68 | 50 | 20 | 13 | 4.3 |
| I83 | 1.83 | 40 | 80 | 55 | 16 | 13 | 4.5 |
Die Moulded Graphite (For Mechanical Applications)
Grade | Density | Flexural | Compressive Strength | Shore Hardness | Open Porosity |
| Remarks |
| – | g/cm3 | MPa | MPa | – | % | 10-6/°C | – |
| MM06E | 1.62 | 60 | 190 | 90 | 1.0 | 4.8 | Impregnated Epoxy Resin |
| MM20E | 1.70 | 55 | 182 | 90 | 1.0 | 4.8 | |
| MM54E | 1.80 | 45 | 100 | 55 | 2.0 | 4.5 | |
| MM06F | 1.62 | 70 | 190 | 85 | 2.0 | 4.7 | Impregnated Furan Resin |
| MM20F | 1.70 | 65 | 190 | 80 | 2.0 | 4.7 | |
| MM54F | 1.70 | 60 | 165 | 65 | 2.0 | 4.5 | |
| MM06P | 1.62 | 75 | 190 | 85 | 1.0 | 4.8 | Impregnated Phenolic Resin |
| MM20P | 1.70 | 70 | 190 | 80 | 1.0 | 4.8 | |
| MM54P | 1.80 | 65 | 165 | 65 | 1.0 | 4.5 | |
| MM06SB | 2.20 | 70 | 230 | 85 | 3.0 | 5.0 | Impregnated Antimony |
| MM20SB | 2.20 | 65 | 230 | 80 | 3.0 | 5.0 | |
| MM54SB | 2.20 | 65 | 190 | 60 | 3.0 | 5.0 | |
| MM06CS | 2.40 | 80 | 240 | 85 | 2.0 | 5.0 | Impregnated Cu-Sn Alloy |
| MM20CS | 2.40 | 75 | 230 | 80 | 2.0 | 5.0 | |
| MM54CS | 2.60 | 65 | 190 | 60 | 2.0 | 5.0 | |
| MM06B | 2.30 | 85 | 235 | 80 | 2.0 | 5.5 | Impregnated Babbitt Metal |
| MM20B | 2.30 | 80 | 210 | 70 | 2.0 | 5.5 | |
| MM54B | 2.30 | 65 | 155 | 65 | 1.5 | 5.2 | |
| MM06G | 1.90 | 75 | 210 | 110 | 1.5 | 4.6 | Impregnated Molten Glass |
| MM20G | 1.90 | 65 | 210 | 95 | 1.5 | 4.6 | |
| MM54G | 1.92 | 65 | 155 | 65 | 1.5 | 4.6 | |
| MM177P | 1.83 | 70 | 220 | 93 | 2.0 | 9.0 | Impregnated Phenolic Resin |