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7 Inch K55 Casing String with Coupling from China

7-inch diameter K55 non-alloy steel casing imported as coupled sections for oil well drilling to stabilize boreholes. HTS 7306.29.60.10 applies to this welded tubing with couplings for drilling use. Provides corrosion resistance and structural integrity.

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
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

Import Tips

Include running procedures and makeup torque data

Verify no chrome lining that could imply alloy

Protect dope coatings during shipping