Graphite Block for EDM Electrodes
High-density isostatic artificial graphite blocks machined to precise dimensions for electrical discharge machining (EDM) electrodes. Falls under HTS 3801.90.0050 as semi-manufactured graphite plates or blocks not yet final-formed. Used in tool and die making industries.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fully machined to final electrode dimensions
Completed EDM electrodes are articles of heading 6815 or 8545 if electrical.
If natural flake graphite, not artificial
Artificial vs natural graphite separates 3801.10 from 3801.90.
If imported as complete EDM tooling set
Assembled tooling kits classify by principal function under Chapter 84/85.
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Import Tips & Compliance
• Certify block density >1.75 g/cm³ and purity >99% carbon; document prevents reclassification as lower-grade carbon
• Provide dimensional tolerances and machining allowance specs; CBP may require proof of semi-manufactured status
• Avoid combining with finished electrodes in same shipment to prevent set classification under 8545
Related Products under HTS 3801.90.00.50
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Colloidal Graphite Lubricant Paste
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Graphite Preform Paste for Carbon-Carbon Composites
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Conductive Graphite Paint Paste
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