Seamless Admiralty Brass Tube from China
Admiralty brass tubes (C44300 alloy) are seamless copper-zinc-tin alloy pipes used primarily in heat exchangers and condensers for their excellent corrosion resistance in seawater. Classified under HTS 7411.29.10.00 as seamless tubes of copper alloys other than those specifically excluded. Meets subheading note (a) for brass alloys where zinc predominates.
Duty Rate — China → United States
36.4%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• 1
• Provide mill test certificates confirming seamless construction and exact alloy composition per ASTM B111 to avoid reclassification as welded. 2
• Declare outer diameter and wall thickness accurately as statistical suffixes may apply. 3
• Ensure no zinc content exceeds limits that would shift to nickel silver classification