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Grade Chart

The physical properties and characteristics of EDM grades vary by particle size, microstructure consistency, flexural strength, density, and hardness.

  

Typical Properties of Poco Graphite Grades

Material GradeAverage Particle Size (µ)Flexural Strength (psi)Compressive Strength (psi)Hardness (shore)Electrical Resistivity (µOhm-in)
EDM-1<597001420069760
EDM-3<5133001810073615
EDM-C3<5203002835066127
EDM-4<4175002150076500
EDM-AF5<1145002210083850
EDM-2001090001550068580
EDM-C20010121002320062114
EDM-2<5112001690071620