7304.29.31/10-3/4 inch 54.5# C110 Coupled Casing/China

10-3/4 inch 54.5# C110 Coupled Casing from China

C110 grade seamless alloy steel surface casing, 10-3/4 inch OD, 54.5 lb/ft, with coupled threads for conductor pipe in offshore rigs. HTS 7304.29.31 applies to its seamless 'other alloy steel' design for oil/gas drilling stability. Resists collapse in unconsolidated formations.

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
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Import Tips

• Submit dimensional inspection reports matching API specs; label with grade and size clearly

• Pitfall: classifying short lengths as scrap—ensure drilling end-use proof

• Use ISPM-15 for wood cradles in packaging

10-3/4 inch 54.5# C110 Coupled Casing from China — Import Duty Rate | HTS 7304.29.31