Sintered Dolomite Blocks for Kiln Linings from Canada
Rectangular blocks of dolomite sintered at high temperatures to achieve dense, heat-resistant structure for industrial furnace linings. Falls under HTS 2518.20.00.00 due to sintering process on roughly trimmed dolomite slabs, used primarily in lime kilns and glass manufacturing.
Duty Rate — Canada → United States
13%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide sintering temperature logs (>1400°C) to prove classification as sintered vs merely calcined
• Measure block dimensions to confirm rectangular shape from Chapter 25 note exclusions
• Avoid shipping in sets with binders, which could shift to 3816 dolomite ramming mixes