AISI 4140 Hot-Rolled Alloy Steel Plate
Flat-rolled AISI 4140 chromium-molybdenum alloy steel plate, hot-rolled, not in coils, with thickness of 6 mm and width of 1500 mm. Classified under HTS 7225.40.3050 as other alloy steel flat-rolled products of 600 mm or more width, hot-rolled without further working, and thickness exceeding 4.75 mm. Used for structural components in machinery and oilfield equipment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If high-strength steel per US Note 72(a)
Products meeting minimum yield point specs (275 MPa for <3mm, 355 MPa for ≥3mm) classify separately within same thickness category.
If not alloy steel (carbon steel equivalent)
Lacks minimum alloying elements required by Chapter 72 Note 1(f) for 'alloy steel'; falls under plain carbon hot-rolled products.
If thickness under 4.75 mm but ≥600mm width
Same alloy steel characteristics but thinner gauge shifts to preceding thickness subheading.
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Import Tips & Compliance
• Provide mill test certificates confirming alloy composition meets Chapter 72 definitions for 'other alloy steel' with specified chromium/molybdenum content
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