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EDM-4® Graphite

Balancing high strength with moderate hardness to create intricate electrodes, this Ultrafine graphite grade has performance characteristics that make it the cost-performance leader in our Ultrafine graphite portfolio.

  • Average particle size of less than 5 microns provide high strength and resistance to damage
  • High strength with moderate hardness to withstand the electrode fabrication process
  • Optimal metal removal rates to performance properties balances improved throughput and extended product life 

Available for order as billets,  semi-finished rods, blocks, and plates.

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Interested in EDM-4 graphite?

Contact Us

Interested in EDM-4 graphite?

Contact Us

Interested in EDM-4 graphite?

Contact Us

Applications

  • Intricate molds and dies
  • EDM wire cut electrodes
  • Micromolding applications
  • Punch and die sets
  • Threading electrodes
  • Aerospace metal cutting

Specifications

Average particle size <5 µm
Flexural strength
 17,500 psi (1,230 kg/cm²)
Compressive strength 21,500 psi (1,511 kg/cm²)
Hardness 76 shore
Electrical resistivity 500 µΩin (12.7 µΩm)

 

Documentation

Grade Chart

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EDM Graphite Grades
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Article

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EDM Effect on Surface Integrity
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Manual

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EDM Graphite
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Article

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How to EDM Steel and Copper Alloy Simultaneously
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Article

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An Added Layer of EDM Knowledge
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Case Study

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Making EDM Profitable
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