Refinery Furnace Process Tube OD 35mm from China
Seamless non-alloy steel tube, OD 35mm, for process furnaces in oil refineries handling high-temperature hydrocarbon streams. Classified in HTS 7304.39.0002 for circular seamless construction suitable for refining furnaces, providing creep resistance under elevated temperatures. Essential for cracking and reforming operations.
Duty Rate — China → United States
75%
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
9903.91.0125%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
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 API or ASME specs confirming refining furnace application and temperature ratings
• Declare exact chemical composition to verify non-alloy status (carbon <0.3% typically)
• Avoid misdeclaration as structural pipe; emphasize pressure containment for furnaces