17-4 PH Precipitation Hardening Stainless Steel Spring Wire from China
17-4 PH (precipitation hardening) alloy steel wire designed for high-strength springs and fasteners, with copper and niobium additions. Falls under HTS 7229.90.90.00 as other alloy steel wire not fitting tool steel or ball-bearing steel definitions in U.S. notes. Typically 0.5-5mm diameter, heat-treatable for aerospace applications.
Duty Rate — China → United States
35%
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
9903.91.0125%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
Import Tips
• Certify exact chemical composition via heat analysis to confirm 'other alloy steel' status; declare condition (annealed or aged) accurately for valuation; segregate from tool steel shipments to prevent commingling errors