3-1/2 Inch P-110 Casing with LTC Coupling from China

High-strength P-110 seamless casing, 3-1/2 inch OD, 11.5 mm wall, long round thread couplings (LTC), for deep oil drilling. Classified in HTS 7304.29.10.10 for its seamless nonalloy steel construction, threaded design, small OD, and thin wall suited for gas/oil well casing.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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

Import Tips

Provide end-user statements confirming oil/gas drilling use to distinguish from other tubes

Beware of alloy content exceeding limits; test for nonalloy compliance (<1.65% Cr, etc.)

Batch imports by exact specs to simplify customs processing and quota tracking