AISI 630 (17-4PH) Stainless Spring Wire 1.4mm from Mexico
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 — Mexico → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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