Chrome-Moly P91 Seamless Pipe for Power Plant Superheaters from China
Seamless P91 grade (9Cr-1Mo-V) alloy steel pipe, wall ≥4 mm, for superheater tubes in fossil fuel power plants. Fits HTS 7304.90.30.00 as thick-walled seamless alloy steel tube for high-temperature steam service.
Duty Rate — China → United States
17.5%
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
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Import Tips
• Normalize/temper certs mandatory for P91; improper heat treat voids specs
• Exact OD/ID measurements for wall thickness verification
• Distinguish from P92; composition affects alloy confirmation