1.35 mm Valve Spring Steel Wire from Mexico
High-carbon valve spring wire (0.65% C), 1.35 mm round uncoated, patented for engine valve springs. Fatigue-resistant for high-RPM applications. HTS 7217.10.80.75 matches carbon content, diameter, and nonalloy uncoated status.
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
• Engine manufacturer specs and fatigue test data support classification
• Distinguish from suspension spring wire which may have different certifications
• Customs may require decarburization layer measurements