Seamless Refined Copper Cryogenic Transfer Lines from Canada
Seamless refined copper tubes for liquid nitrogen/helium transfer in cryogenic research facilities. Classified HTS 7411.10.10 as seamless refined copper pipes. Excellent thermal conductivity at low temperatures.
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
• Include low-temperature ductility test results; specify insulation separate from tube
• Pitfall: classifying vacuum-insulated assemblies under Chapter 84