Heavy Weight Drill Pipe HWDP 3-1/2 inch Alloy Steel from China
3-1/2 inch (88.9 mm) OD heavy weight drill pipe (HWDP) made from seamless alloy steel tubing with 7.8 mm wall thickness for transition zones in drilling strings. Features upset ends for premium tool joint connections. Falls under HTS 7304.23.6030 as seamless alloy steel drill pipe with specified dimensions.
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 upset end dimensions and connection specifications in commercial invoice
• Ensure no plastic coating or lining; coated pipe may require different classification
• Maintain traceability documentation from steel mill to finished pipe for Customs verification