Boiler Firetube Replacement from China
A firetube is a critical heat exchanger tube used in fire-tube boilers to transfer heat from combustion gases to water, generating steam. It is classified under HTS 8402.90.00 as a dedicated part of steam generating boilers. These tubes are made from high-temperature resistant alloys to withstand boiler operating conditions.
Duty Rate — China → United States
41.8%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Verify compatibility with specific boiler models via manufacturer specs; obtain material certificates for pressure vessel compliance; avoid misclassification as generic tubing under Chapter 73