Structural Alloy Steel Large Pipe for Bridge Construction from China
Longitudinally welded alloy steel tubes exceeding 406.4 mm OD used as structural elements in bridge piers and supports. HTS 7305.31.60 covers these large circular welded pipes of alloy steel. High-strength low-alloy (HSLA) grades.
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
• Provide structural engineering specs showing load-bearing use, but note tubes classify by form over function
• Confirm circular cross-section; elliptical variants may shift to hollow profiles in 7306.60