Heat Exchanger Seamless Tube 22mm OD from China
Thin wall seamless carbon steel tube (22mm OD, 2mm wall) for shell-and-tube heat exchanger construction. Falls under HTS 7304.39.0020 as other seamless nonalloy steel tubes <38.1mm OD, U-bend capable for exchanger tube bundles. ASTM A179 carbon steel grade standard.
Duty Rate — China → United States
35%
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
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
Import Tips
• Specify finned or plain tube; fins may trigger 'articles of iron/steel' classification
• Document U-bend radius capability (min 3x OD) for exchanger application
• Confirm leak test results (100% eddy current) per TEMA standards