AISI 630 (17-4PH) Stainless Spring Wire 1.4mm from China
AISI 630 (17-4PH) martensitic precipitation-hardening stainless wire, 1.4 mm round for valve springs. Under HTS 7229.90.50.31 as other round alloy steel wire 1.0-1.5 mm, not meeting tool steel or razor blade steel definitions.
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
• Label with exact HTS statistical suffix based on diameter; importers often overlook 0.1mm differences affecting rates
• Ensure documentation shows cold-heading quality grade suitable for fasteners to support end-use claims if needed
• Avoid bundling with fittings; sets classify differently under composite goods rules