O1 Tool Steel Flat Billet from China
O1 oil-hardening tool steel flat billet with rectangular section, width at least four times thickness, used for tooling and gauges. HTS 7224.90.0025 covers such semi-finished tool steel products. O1 meets tool steel criteria with ≥0.85% carbon and 1-1.8% manganese.
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 spectrochemical analysis confirming O1 composition elements per US note (e)
• Measure and record exact width/thickness ratio on commercial invoice
• Ensure no cladding/coating; 'further worked' treatments shift to Chapter 72 headings 7228+