AISI 4140 Hot-Rolled Alloy Steel Round Bar from Germany
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 — Germany → United States
Rate breakdown
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