High-Temperature Turbine Stator Blades from China
Stationary stator blades made from nickel superalloys for directing vapor flow in turbines driving semiconductor boule pullers, enduring >1600°C per statistical note (a)(i). Classified HTS 8406.90.70.00 as stationary blades critical for efficient energy transfer in crystal growth. Coatings prevent material contamination of semiconductor crystals.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• Provide alloy composition (Inconel 718) and contamination specs (<1ppb impurities) documentation
• Thermal cycle test reports mandatory for duty preference claims