O1 Tool Steel Flat Bar Stock from China
O1 oil-hardening tool steel in rectangular semi-finished form with width less than four times thickness, used for making gauges and fixtures. HTS 7224.90.0015 covers this as other alloy tool steel rectangular primary forms. Composition includes 0.85-1.0% C and 1-1.8% Mn per tool steel definition (e)(iii).
Duty Rate — China → United States
75%
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
9903.91.0125%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
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
• Include heat analysis showing 0.85%+ C and 1-1.8% Mn to qualify as tool steel under note (e)(iii)
• Verify and record exact cross-sectional dimensions for customs dimension verification
• Ensure product remains in primary form without further working treatments listed in chapter notes