Precision Welded Alloy Steel Tube for Heat Exchangers from China
High-precision welded tube from 4130 alloy steel, 16mm OD, 1.3mm wall thickness, used in compact heat exchanger coils for HVAC systems. Falls under 7306.50.10.00 for its welded, circular, thin-walled alloy steel construction. Enables efficient thermal transfer in space-constrained applications.
Duty Rate — China → United States
75%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 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
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Supply hydrostatic test reports proving pressure capability for thin walls
• Declare exact alloy grade (e.g
• A335 P11) for accurate duty assessment
• Separate from finned assemblies to maintain tube classification