3.5-inch OD 4130 Stainless Drill Pipe Premium Heavy from China
Heavy-duty seamless stainless steel drill pipe, 3.5-inch OD with wall thickness exceeding 9.5 mm, featuring premium threading for deep-well oil exploration. Falls under HTS 7304.22.0045 as stainless steel seamless drill pipe used in oil/gas drilling with OD not exceeding 168.3 mm.
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
• Include chemical composition analysis proving stainless steel alloy status per ASTM A312 or API 5DP
• Document tool joint specifications; mismatch can lead to classification as plain tubing under 7304.41
• Avoid bulk packaging confusion—declare as individual lengths to prevent set classification errors