3-1/2 Inch N80Q Quasi-Premium Tubing from Canada
3-1/2 inch N80Q quasi-premium tubing, seamless nonalloy steel with enhanced collapse resistance for sour gas drilling. Features special heat treatment per API 5CT. Classified under HTS 7304.29.50 for nonalloy drill tubing.
Duty Rate — Canada → United States
50%
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
9903.03.060%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; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Sour service requires H2S testing per NACE MR0175 for customs verification
• Quasi-premium connections need connection test data beyond standard API
• Avoid generic 'oil pipe' descriptions—specify 'API 5CT tubing' explicitly