BAHX Cold Box Heat Exchanger for LNG Liquefaction from Canada
A brazed aluminum plate-fin heat exchanger integrated into LNG cold boxes for natural gas liquefaction, facilitating multi-stream heat transfer at sub-zero temperatures. Classified under HTS 8419.50.10.00 for its role in industrial cooling and condensing processes.
Duty Rate — Canada → United States
29.2%
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 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
• Obtain cryogenic testing certifications (e.g
• impact tests at -196°C) to prove suitability for LNG applications
• Declare fin density, passage configurations, and brazing process details to confirm classification
• Beware of valuation issues; exclude installation costs from customs value for modular cold box units