310S Stainless Refining Furnace Tube from China
High oxidation resistance welded 310S stainless steel tubes for petroleum refining furnace applications, featuring wall thickness ≥1.65 mm to withstand carburizing atmospheres. Provides excellent creep strength at elevated temperatures. HTS 7306.40.50.15 covers these welded stainless tubes for refining furnaces.
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
• Provide OEM specifications confirming refining furnace application to support tariff classification
• Document compliance with API standards for furnace tubing materials and fabrication
• Monitor for additional tariffs under Section 301 on steel products from targeted countries