Incoloy 800H Seamless Process Gas Pipe from China
Nickel-iron-chromium alloy (Incoloy 800H) seamless pipe, 177.8 mm OD x 15 mm wall, for high-temperature process gas service in petrochemical plants. Classifies in HTS 7304.59.80.35 as 'other alloy steel' seamless tube/pipe meeting size criteria, even with nickel content. Solution annealed for creep resistance.
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
• Present material test reports showing Ni>10% but steel matrix dominant to justify 7304 vs 7506 classification
• Include ASME Section II material spec sheets for alloy verification during entry
• Separate from carbon steel shipments to avoid commingling and classification disputes