M42 Cobalt High-Speed Steel Plate from Mexico
M42 cobalt-bearing high-speed steel hot-rolled plate, 8 mm thick, 1000 mm wide for drill bit blanks. HTS 7225.40.11.10 applies as cobalt-enhanced high-speed steel (1.1% C, 8% Cr, 9.5% W, 1.5% V, 8% Co) in hot-rolled, non-coil form ≥4.75 mm thick.
Duty Rate — Mexico → United States
50%
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
9903.05.900%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
• Cobalt content documentation essential - distinguishes from standard M2/M35 for proper high-speed steel verification
• Check for 'universal mill plate' characteristics (note b) which might affect classification if patterned
• Ensure no chemical surface treatments (phosphating, etc.) as these constitute 'further worked'