Incoloy 800H Seamless Process Gas Pipe from Mexico
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 — Mexico → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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