T11 Alloy Heat Exchanger Tube OD 31.75mm from Japan
Seamless ASTM A335 Grade T11 alloy steel tube, OD 31.75 mm, optimized for condensers and feedwater heaters in refining furnaces. Low alloy content provides creep resistance under thermal stress. Under 7304.59.20.40 for small OD and heat exchanger suitability.
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
• Include hydrostatic test certificates proving pressure integrity for boiler applications
• Avoid bulk packaging misclassification; specify individual tube lengths on invoices