17-4PH Stainless Alloy Seamless Pipe (Alloy Steel Classification) from China
Seamless 17-4PH precipitation-hardening alloy with wall >4 mm for aerospace and valve bodies. While high Cr, classified as alloy steel tube under HTS 7304.90.30.00 if not meeting stainless criteria in specific contexts.
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
• Confirm if Cr effectively ≥10.5% for stainless vs alloy debate
• PH heat treat certification required
• Customs rulings key for borderline alloys