SA-335 P11 Seamless Refinery Furnace Tube from China
1.25Cr-0.5Mo (P11) seamless alloy tube, 130 mm OD, for transfer lines in refining furnaces and crackers. Hot-finished for high-temperature hydrocarbon service with good resistance to sulfidation. Classified in 7304.59.20.55 as other alloy steel seamless pipe suitable for refining furnaces, diameter compliant.
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
• Ensure sulfur content meets refinery specs (<0.005%); provide NDT reports
• Common issue: valuation disputes on heat-treated vs as-rolled condition