Silicon Carbide Refractory Block from China
Silicon carbide refractory blocks are fired ceramic blocks made from silicon carbide grains, used in high-wear areas of incinerators and boiler linings. They provide exceptional abrasion resistance and thermal conductivity. Classified in HTS 6902.90.50 for other refractory ceramic constructional goods.
Duty Rate — China → United States
37.5%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide firing certificates showing temperatures >800°C to confirm Chapter 69 applicability
• Include SiC content certification; avoid declaring as 'articles of chapter 82' if shaped for construction