6815.91.00/Magnesia Carbon Brick Inserts/Japan

Magnesia Carbon Brick Inserts from Japan

Magnesia matrix inserts with carbon additives for BOF vessel linings. Classified HTS 6815.91.00 for primary magnesite content despite carbon. Used in basic oxygen furnace steelmaking.

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

• Carbon content <20% keeps classification at 6815.91

• BOF end-use letters prevent Chapter 69 shift

• Avoid 'graphite brick' terminology