Carbon Steel Heat Exchanger U-Tube OD 22mm from China
Bent seamless carbon steel U-tube with 22mm OD for shell-and-tube heat exchangers in refining and chemical processing. HTS 7304.39.0002 covers its non-alloy seamless circular profile and heat exchanger suitability, despite U-bend, as bending doesn't alter base tube classification. High fatigue resistance for thermal cycling.
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
• Document U-bend radius and tube sheet compatibility to affirm heat exchanger end use
• Require NDT (non-destructive testing) reports for seamless quality assurance at import