High-Temperature Turbine Stator Blades from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide alloy composition (Inconel 718) and contamination specs (<1ppb impurities) documentation
• Thermal cycle test reports mandatory for duty preference claims