Seamless C10100 OFHC Copper Vacuum Tubing from Canada
Oxygen-free high-conductivity (OFHC) C10100 seamless refined copper tubing for high-vacuum systems in semiconductors. HTS 7411.10.10 covers these seamless refined copper pipes per Chapter 74 notes. Minimal impurities ensure ultra-high vacuum performance.
Duty Rate — Canada → United States
51.5%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide oxygen content analysis confirming OFHC status; cleanroom packaging documentation required
• Pitfall: classifying annealed vacuum tubing as 'worked' under 7412