POCO's 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.
Attributes:
- Bulk Density 3.05 Mg/cm³
- Hardness 67 Shore
- Electrical Resistivity 120 µOhms/in
- Flexural Strength 16,500 psi
- Tensile Strength 30,000 psi
- Average Grain Size <5 microns