Cupro-Nickel Hollow Profile Tube for Offshore Oil Platform Risers from China
Specialty hollow profile from 90/10 cupro-nickel for flexible riser components in offshore oil platforms, providing corrosion resistance under high pressure. HTS 7407.29.16.10 due to copper-nickel base alloy and non-circular hollow profile design for structural reinforcement. Supplied in controlled lengths for welding.
Duty Rate — China → United States
38%
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
• Oil & gas importers must provide API/ISO material certificates confirming cupro-nickel UNS C70600 composition
• Clearly mark as 'structural profiles' vs 'pressure tubing'; include stress analysis if applicable