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6903.90.00/Ceramic Ladle Plunger/Japan

Ceramic Ladle Plunger from Japan

Zirconia-graphite ceramic plunger for stirring molten steel in secondary refining ladles. Refractory 'other goods' under HTS 6903.90.00 for steelmaking immersion devices. High-fired for extreme corrosion resistance.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Steel producer verification prevents tool classification; document density >3.5g/cm³

• Pitfall: short-use plugs misread as Chapter 82 tools