Seamless Boiler Tube SA-106 Grade B 14-inch OD 18mm WT from Canada
ASME SA-106 Grade B seamless carbon steel tube for high-temperature boiler service, 355.6 mm OD, 18 mm wall. Classifies in HTS 7304.39.0068 for seamless non-alloy steel pipes of circular cross section in the defined dimensions. Withstands extreme pressures in power plants.
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
• Supply ASME material certs; lack thereof risks classification as generic tube
• Specify 'other' vs pressure tube subheadings based on exact service intent
• Watch minimum wall tolerance; under 12.7 mm effective thickness reclassifies