O1 Tool Steel Polished Rectangular Bar from China

25 mm x 20 mm rectangular section bar of O1 oil-hardening tool steel, polished finish for gauge and fixture manufacturing. Fits HTS 7228.50.10.60 as tool steel bars (U.S. note (e)(iii): ≥0.85% C, 1-1.8% Mn) with rectangular cross-section >18 mm max dimension and polished surfaces from cold-finishing.

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

Provide chemical analysis confirming tool steel elements (C, Mn levels) to CBP; mismatches lead to 7228.50.30 reclassification

Ensure no heat treatment beyond cold-finishing; annealed condition only, as quenched/tempered may affect alloy steel heading

Label dimensions clearly; max cross-section determines statistical suffix within 7228.50.10