Seamless Steel Fin-Tube Base OD 30mm from Japan
Plain seamless tube OD 30mm serving as base for aluminum finned heat exchanger tubes in air preheaters. Under HTS 7304.39.0002 for nonalloy steel seamless circular form suitable for heat exchangers, prior to fin attachment. Provides structural core for extended surface exchangers.
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
• Declare as 'base tube for finning' with surface finish specs for heat exchanger use
• Ensure dimensional tolerance certificates for OD consistency under 38.1mm limit