ASTM A106 Grade B Seamless Pipe 4.5-inch OD 0.531-inch Wall from Canada
High-temperature service seamless pipe, 114.3 mm OD with 13.5 mm wall, non-alloy carbon steel per ASTM A106 specs. Fits HTS 7304.39.0032 precisely due to circular cross-section, OD range 38.1-114.3 mm, and wall over 12.7 mm. Essential for process piping in power plants and petrochemical facilities.
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
• Submit heat analysis reports confirming carbon content <0.3% to prove non-alloy status
• Avoid bundling with fittings; sets may classify under 7307 as tube fittings rather than individual pipes
• Check for anti-dumping orders on specific grades/sources; Chinese A106 often under AD/CVD scrutiny