Synthetic Diamond Powder for Oil Drilling Bits from China
Coarse synthetic diamond powder designed for matrix bonding in PDC (Polycrystalline Diamond Compact) drill bits for oil/gas exploration. Meets HTS 7105.10.0050 powder criteria (90% <0.5mm). Industrial grade excluding jewelry applications.
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
• Include API/ISO specifications confirming suitability for drill bit impregnation
• Ship in anti-static containers; static discharge can alter powder characteristics
• Document thermal stability rating (>700°C) to verify industrial drilling grade