7228.30.80/AISI 4140 Hot-Rolled Alloy Steel Round Bar/Japan

AISI 4140 Hot-Rolled Alloy Steel Round Bar from Japan

AISI 4140 is a chromium-molybdenum alloy steel round bar produced by hot-rolling, used for shafts, gears, and axles in machinery. It falls under HTS 7228.30.80 as other bars and rods of alloy steel, not further worked than hot-rolled, hot-drawn or extruded. The alloy composition exceeds simple carbon steel definitions and lacks special alloy steel specifications from chapter notes.

Duty Rate — Japan → 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)

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Import Tips

• Provide mill test certificates confirming alloy composition (e.g

• Cr 0.8-1.1%, Mo 0.15-0.25%) to verify classification as alloy steel

• Ensure documentation specifies 'not further worked than hot-rolled' to avoid reclassification under cold-worked headings like 7228.50

• Check for high-strength steel note (a) compliance; if yield strength exceeds thresholds, alternative classification may apply