16-Inch OD X70 Alloy Steel Gas Pipeline Pipe from China
A high-strength welded alloy steel pipe with 16-inch outside diameter and X70 grade, used in natural gas transmission pipelines. Classified under HTS 7306.19.51.50 for its alloy steel material, line pipe purpose, welded profile, and large diameter exceeding 114.3 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 hydrostatic test certificates to prove pressure rating suitability for gas pipelines, avoiding delays in verification
• Label pipes clearly with grade, size, and API specs to facilitate customs inspection and prevent undervaluation disputes
• Watch for anti-dumping duties on certain alloy steel pipes from specific countries; check U.S
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