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M42 Cobalt High-Speed Steel Hot Coil from China

M42 high-speed steel with cobalt addition, hot-rolled coils 650mm wide by 4mm thick, for end mills and broaches. HTS 7225.30.51.10 applies as high-speed tool steel meeting Chapter 72 compositional standards for superior red-hardness. Not further worked beyond hot-rolling.

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

Cobalt content documentation essential; declare exact alloy percentages

Inspect for any surface treatments that would constitute 'further worked'