O1 Tool Steel Flat Bar 10x15mm from Japan
Cold-rolled flat bar of O1 oil-hardening tool steel (0.9% C, 1% Mn, 5% Cr equivalent per note e(iii)), max dimension 15mm, for toolmaking and gauges. Classified under 7228.50.10.40 as cold-finished tool steel bar under 18mm, not high-speed. No further working beyond cold-finishing.
Duty Rate — Japan → United States
10%
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
Import Tips
• Label with precise dimensions; CBP measures maximum cross-section—over 18mm triggers different rate
• Include heat analysis certificate proving tool steel elements per note (e) to prevent fallback to generic alloy steel
• Avoid bundling with further-worked items; separate shipments reduce misclassification risk