4.5-inch OD Stainless Steel Drill Pipe Heavy Wall from China
Seamless stainless steel drill pipe with 4.5-inch outside diameter and wall thickness over 9.5 mm, designed for high-pressure oil and gas drilling operations. Classified under HTS 7304.22.0045 due to its seamless construction, stainless steel material, and specifications suitable for drill pipe in drilling for oil or gas. The heavy wall thickness provides enhanced durability against torsional stresses.
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
• Verify seamless construction via mill test certificates; welded pipes classify under 7304.41 or 7306.40
• Provide end-user statements confirming oil/gas drilling use to avoid reclassification as general tubing
• Ensure accurate measurement of OD ≤168.3mm and wall >9.5mm; common pitfall is incorrect caliper readings