EDM-AF5
Color Code: Gold |  | EDM-AF5 is the only graphite electrode material available on the market today with an average particle size of less than 1 micron. This particle structure gives EDM-AF5 superior strength, provides for fine surface finish (7Ra.), gives excellent metal removal rate and high resistance to wear. |
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| Avg. Grain Size: | 1 Micron | | Resistivity: | .00068 ohm/in. | |
| Hardness: | 87 Shore | | Maximum Block Size: | 2" x 8" x 24" | EDM-AF5 |
| *Flex Strength: | 17,000 psi | | Method of Manufacture: | Molded | |
| | | | | | Surface Ground Plates |
| | | | Rounds |
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Poco EDM-4
Color Code: Navy | | POCO's premier offering in the Ultra-fine classification. This highly isotropic grade combines extraordinary strength with moderate hardness, yeilding superior electrode fabrication characteristics. The consistency of EDM-4 also makes it an excellent choice for highly detailed wire cut electrodes. EDM-4 is reasonably priced, making it the cost performance leader for most applications requiring a high quality Ultra-fine graphite. EDM-4 is the ideal choice for jobs requiring excellent machinablilty, low electrode wear & smooth surface finishes. |
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| Avg. Grain Size: | 4 Micron | | Resistivity: | .00050 ohm/in. | |
| Hardness: | 76 Shore | | Maximum Block Size: | 4" x 12" x 40" | Poco EDM-4 |
| *Flex Strength: | 15,800 psi | | Method of Manufacture: | Molded | |
| | | | Pre-Ground Blanks | Large Plates & Blocks | Precision Ground Squares |
| | | | | Machined Plates | Round Bars |
| | | | | Surface Ground Sheets | Pre-Ground Blanks |
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EDM-3
Color Code: Red | | EDM-3 is an isotropic ultra-fine grain graphite which offers high strength with outstanding wear and fine surface finish characteristics easily machined to thicknesses of .005 or less. |
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| Avg. Grain Size: | 5 Micron | | Resistivity: | .00054 ohm/in. | |
| Hardness: | 76 Shore | | Maximum Block Size: | 4" x 12" x 40" | EDM-3 |
| *Flex Strength: | 13,500 psi | | Method of Manufacture: | Molded | |
| | Machined Plates | Pre-Ground Blanks | Precision Ground Squares | Tubing |
| | Surface Ground Sheets | Regular & Orbital Tapping Electrodes | Metric Tapping Electrodes | Metric Orbiting Tapping Electrodes |
| | | Round Bars | Large Plates & Blocks | Pre-Ground Blanks |
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EDM-2
Color Code: Yellow | | EDM-2 is an isotropic ultra-fine grain graphite with high strength and good wear characteristics recommended where good detail, wear resistance, speed, and finish are desired. EDM-2 is an excellent all purpose grade for super alloys like titanium. |
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| Avg. Grain Size: | 5 Micron | | Resistivity: | .00062 ohm/in. | |
| Hardness: | 73 Shore | | Maximum Block Size: | 4" x 12" x 40" | EDM-2 |
| *Flex Strength: | 10,000 psi | | Method of Manufacture: | Molded | |
| | | | | Round Bars | Machined Plates |
| | | | | | Surface Ground Sheets |
| | | | | | Large Plates & Blocks |
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EDM-1
Color Code: White | | EDM-1 is the lowest priced ultra-fine grain graphite available from POCO. In addition to providing good wear resistance, speed, and finish, lower electrode fabrication costs are possible when larger electrodes are required. |
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| Avg. Grain Size: | 5 Micron | | Resistivity: | .00074 ohm/in. | |
| Hardness: | 70 Shore | | Maximum Block SIze: | 4" x 12" x 40" | EDM-1 |
| *Flex Strength: | 7,500 psi | | Method of Manufacture: | Molded | |
| | | | | Round Bars | Machined Plates |
| | | | | | Surface Ground Sheets |
| | | | | | Large Plates & Blocks |
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EDM-200
Color Code: Purple | | EDM-200 is an isotropic super-fine grain graphite providing good strength, surface finish, and wear resistance. Moderately priced, EDM-200 provides excellent repeatability from electrode to electrode and from job to job. Available in large block sizes |
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| Avg. Grain Size: | 10 Micron | | Resistivity: | .00048 ohm/in. | |
| Hardness: | 64 Shore | | Maximum Block Size: | 6" x 24" x 60" | EDM-200 |
| *Flex Strength: | 9,000 psi | | Method of Manufacture: | Molded | |
| | | | | Pre-Ground Blanks | Round Bars |
| | | | | Large Plates & Blocks | Machined Plates |
| | | | | | Precision Ground Squares |
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Poco EDM-150
Color Code: Brown | | An isotropic fine grain graphite with excellent metal removal & Resistance characteristics Available in large block sizes & economically priced, EDM-150 is an excellent choice for larger electrodes. the high flexural strength & machinability of EDM-150 is unmatched by other materials in the Fine Classification. |
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| Avg. Grain Size: | 14 Micron | | Resistivity: | .00057 ohm/in. | |
| Hardness: | 68 Shore | | Maximum Block Size: | 6" x 24" x 60" | Poco EDM-150 |
| *Flex Strength: | 7,800 psi | | Method of Manufacture: | Molded | |
| | | | | Pre-Ground Blanks | Round Bars |
| | | | | | Large Plates & Blocks |
| | | | | | Machined Plates |
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EDM-C3
Color Code: Orange | | EDM-C3 is high density graphite infiltrated with copper. Recommended where speed, wear, and surface finish are important. Unequalled for fragile electrodes, many EDMers choose this grade to compensate for operator inexperience or where poor flushing conditions exist. |
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| Avg. Grain Size: | 5 Micron | | Resistivity: | .00012 ohm/in. | |
| Hardness: | 67 Shore | | Maximum Block Size: | 2: x 8" x 12" | EDM-C3 |
| *Flex Strength: | 16,500 psi | | Method of Manufacture: | Impregnated | |
| | | | Copper Rods | Copper Round Bars | Tubing |
| | | | Copper Plates | Pre-Ground Blanks | Precision Ground Squares |
| | | | Regular & Orbital Tapping Electrodes | Metric Tapping Electrodes | Metric Orbiting Tapping Electrodes |
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EDM-C200
Color Code: Green/White | | EDM-C200 is a high density super-fine graphite, infiltrated with copper, which offers excellent metal removal rates and good wear resistance. EDM-C200 provides improved cutting stability in poor flushing conditions. EDM-C200 is an excellent material for cutting aerospace alloys. |
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| Avg. Grain Size: | 10 Micron | | Resistivity: | .00007 ohm/in. | |
| Hardness: | 60 Shore | | Maximum Block Size: | 4" x 8" x 12" | EDM-C200 |
| *Flex Strength: | 13,000 psi | | Method of Manufacture: | Impregnated | |
| | | | | Surface Ground Sheets | Copper Round Bars |
| | | | | | Copper Rods |
| | | | | | Copper Plates |
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