1.35 mm Valve Spring Steel Wire from China
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 — 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
• 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