AISI 4340 Nickel-Chromium-Molybdenum Steel Slab
Flat-rolled slab of AISI 4340 alloy steel containing nickel, chromium, and molybdenum, primarily for aerospace components. Falls under HTS 7224.90.0075 as other semi-finished alloy steel products not qualifying as universal mill plate or other specified types. It is in primary form suitable for further hot working.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If universal mill plate specifications
Meets U.S. note (b) for width 150-1250mm, thickness >=4mm, rolled on four faces, not in coils.
If flat-rolled width >600mm in coils
Reclassified as hot-rolled non-alloy steel sheets if alloy content insufficient or in coil form.
If further cold-worked into bars
Advances to heading for other bars and rods of alloy steel after cold rolling or drawing.
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Import Tips & Compliance
• Submit chemical analysis reports to verify alloy status; declare exact dimensions to confirm semi-finished status; check for Section 232 tariffs on steel imports exceeding quotas
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