Precision Steel Race for Crystal Boule Grinders from Canada
Through-hardened steel race for grinders that shape semiconductor crystal boules to exact diameters before wafer slicing. HTS 8482.99.2580 classification for other bearing races used in semiconductor boule preparation equipment. Critical for maintaining crystal orientation flats indicating conductivity type.
Duty Rate — Canada → United States
30.8%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Document boule grinder OEM specifications; include flatness tolerance data (≤0.5μm); segregate from general machinery races to avoid incorrect Chapter 84 headings