AISI 4140 Hot-Rolled Alloy Steel Coil

Hot-rolled bars and rods of AISI 4140 chromium-molybdenum alloy steel, wound in irregularly shaped coils, used for manufacturing shafts and gears. Classified under HTS 7227.90.60.90 as other hot-rolled alloy steel bars/rods in coils, not matching specific alloy steel categories like high-strength or tool steel. Meets Chapter 72 definition for alloy steel with chromium and molybdenum content.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7228.70.30Same rate: 35%

If further worked with polishing or coating

Chapter 72 notes define 'further worked' surface treatments like polishing or metal coating, moving product from hot-rolled (7227) to other bars/rods (7228).

7225.50.60Same rate: 35%

If low-alloy high-strength steel per note (a)

Qualifies as high-strength steel if thickness <3mm with yield point 275 MPa or >=3mm with 355 MPa, classified under specific low-alloy heading 7225.

7308.90Lower: 10% vs 35%

If processed into finished concrete reinforcing bars

Hot-rolled bars with indentations/ribs for concrete reinforcement per note (c) fall under Chapter 73 as structures, not raw Chapter 72 bars/rods.

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Import Tips & Compliance

Provide mill test certificates confirming alloy composition (e.g

0.38-0.43% C, 0.8-1.1% Cr, 0.15-0.25% Mo) to avoid reclassification

Ensure product is in irregularly wound coils and hot-rolled; uncoiled or cold-rolled shifts to different subheadings

Declare exact diameter and coil weight to match statistical reporting; common pitfall is misstating as concrete reinforcing bars

Related Products under HTS 7227.90.60.90

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E4340 Hot-Rolled Alloy Steel Bar Coil

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