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4-1/2 inch 13.8# Alloy Casing from China

13.8 lb/ft seamless alloy steel casing, 4-1/2 inch OD (114.3 mm) with 10.2 mm calculated wall thickness per API tables. Production casing for oil wells, precisely matching HTS 7304.23.60.45 parameters for small diameter heavy wall alloy drill pipe.

Duty Rate — China → United States

75%

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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 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

Nominal weight (13.8#) must correlate exactly with OD/wall thickness per API 5CT tables

Internal diameter calculations required to verify plain end vs coupled configurations

Plain end vs threaded&couplings affects declaration; specify connection status clearly