POCO’s EDM-C3 is a high quality graphite infiltrated with copper, recommended where speed, wear, and surface finish are important. Unequalled for fragile electrodes, many EDM’ers choose this grade to compensate for
operator inexperience or where poor flushing conditions exists.
Average Particle Size: . . . . . . . . . . . . . . . . . . . . . . <5 microns Flexural Strength: . . . . . . . . . . . . . 20,300 psi, (1,427 kg/cm2) Compressive Strength .:. . . . . . . . . 28,350 psi, (1,993 kg/cm2) Hardness: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Shore Electrical Resistivit y. :. . . . . . . . . . . . . . . 127 μ in, (3.2 μ m)
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