Standard Fireclay Refractory Brick from China
Standard-sized refractory brick composed of fireclay, designed for boiler and incinerator linings with service temperatures up to 1500°C. Offers good mechanical strength and chemical resistance to slags. Falls under HTS 6902.90.10.10 specifically for clay-composed refractory bricks other than siliceous types.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Label shipments clearly with 'refractory clay bricks' and dimensions to match statistical reporting suffixes
• Obtain manufacturer's declaration of pyrometric cone equivalent (PCE) >27 to substantiate refractory clay classification
• Watch for misdeclaration as building bricks (6904.10); refractory use requires proof of high-temperature application