Insulating Refractory Castable from China
Lightweight castable refractory with vermiculite and alumina for low thermal conductivity furnace backings. Under HTS 3816.00.20.50 as other refractory concretes, serviceable to 1400°C with density <1.2 g/cm³. Reduces energy loss in heat processing equipment.
Duty Rate — China → United States
40.5%
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
• Thermal conductivity (<0.3 W/mK) data essential for insulating claim
• Vermiculite expansion certs prevent asbestos contamination flags