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POCO's EDM-AF5 is the only graphite electrode material available on the market today with an average particle size of less than one micron. This particle structure gives EDM-AF5 superior strength, provides for fine surface finished (7Ra), gives excellent metal removal rate, and high resistance to wear.



Fine detailed electrodes for engraving
Hard to machine detail
Delicate and fragile electrodes
Various type threading electrodes
Jobs requiring fine surface finishes
Intricate molds and die

Product Specification

Average Particle Size (µ) <1
Flexural Strength (psi) 14,500
Compressive Strength (psi) 22,100
Hardness (shore) 83
Electrical Resistivity (µOhm-in) 850