O1 Oil-Hardening Tool Steel Billet from China
O1 tool steel billets with 0.85-1.0% carbon and 0.9-1.3% manganese per U.S. Note (e)(iii), used as feedstock for forging tools and gauges. HTS 7224.90.0035 covers these semi-finished primary forms of other tool steel.
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
• Include heat analysis certificates specifying manganese and carbon levels for tool steel validation
• Avoid bulk packaging that suggests further processing; maintain evidence of semi-finished state