Incoloy 800 Heat Exchanger Tube from Japan
Incoloy 800 seamless tubes are precision-engineered for heat exchangers in petrochemical plants, offering exceptional resistance to oxidation and carburization. These circular cross-section pipes withstand high temperatures in condenser and feedwater heater systems. Falls under 7304.59.20 as seamless alloy steel tubes suitable for heat exchangers per official descriptions.
Duty Rate — Japan → 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
• Include hydrostatic test certificates proving pressure suitability for superheaters or condensers
• Label with exact alloy grade (e.g
• Incoloy 800H) to avoid reclassification to carbon steel tubes