Carburizing Furnace Seamless Retort Tube from Japan
Seamless heat-resisting steel tube for carburizing furnace retorts, resisting carbon diffusion at 950°C atmospheres. HTS 7304.59.60.00 designation for seamless circular alloy steel tubes engineered for prolonged high-temperature exposure.
Duty Rate — Japan → United States
10%
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
Import Tips
• Document resistance to carburizing atmospheres via lab exposure tests
• Galvanized interior coatings disqualify from plain tube classification
• Long lengths (>10m) may require special transport declarations affecting valuation