Magnesia Chrome Refractory Shapes from Japan
Preformed refractory blocks combining magnesia and chromite for rotary kilns in cement production. HTS 6815.91.00 applies due to dual magnesite and chromite composition. Offers superior resistance to chemical attack and thermal shock.
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%
Import Tips
• Provide blend ratios (e.g
• 20% Cr2O3) in commercial invoice
• Distinguish from Chapter 69 by proving non-ceramic bonding
• Monitor hexavalent chromium declarations for environmental compliance