Alloy 600 Seamless Heater Exchanger Tube from China
Seamless Inconel Alloy 600 tube for fire-tube heaters and heat exchangers in petrochemical service, offering oxidation resistance above 1000°C. Classified in HTS 7304.59.60.00 for heat-resisting seamless steel tubes of circular cross-section.
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
• Require U-tube or straight tube certifications distinguishing from finned heat exchanger parts
• Confirm no internal threading that could classify as drill pipe or casing
• Undervaluing scrap content in alloys leads to penalties; declare true alloy value