High-Magnesia Carbon Kiln Blocks from Canada
Heavy-duty blocks exceeding 70% magnesia with controlled carbon under 30%, resin-bonded for cement kiln transition zones. They withstand abrasion and alkali attack. Fits HTS 6810.11.00.10 for building block form and composition.
Duty Rate — Canada → United States
13.2%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Obtain supplier's material safety data sheets (MSDS) detailing MgO, carbon, and binder for customs
• Use ISPM-15 compliant pallets for wood packaging to prevent quarantine issues
• Avoid declaring as 'artificial stone tiles' which shifts to different 6810 subheadings