O1 Oil-Hardening Tool Steel Ingot from China
O1 tool steel ingot with 0.85-1.00% carbon and 1.00-1.80% manganese meets tool steel criteria per note (e)(iii). Used primarily for making drills, taps, and knurling tools. Falls under 7224.10.0045 as primary form tool steel.
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
• Submit chemical analysis certificate at entry; segregate from non-tool steel to prevent commingling issues; note no rust allowance per chapter provisions