AISI 4140 Alloy Steel Ingots
Cylindrical ingots of AISI 4140 chromium-molybdenum alloy steel, produced via electric arc furnace melting for further processing into bars or forgings. Classified under HTS 7224.10.00 as ingots of other alloy steel in primary form, not meeting specific tool steel or high-strength steel definitions in chapter notes.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cast into slabs, billets, or blooms
Semi-finished products beyond ingot/primary form fall under 7224.90 as they represent further processing stages.
If not alloy steel
Plain carbon steel ingots classify under Chapter 72 heading 7207, lacking specified alloying elements.
If meets tool steel definition
Tool steels with specific carbon/chromium ratios per note (e) move to heading 7228.
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Import Tips & Compliance
• Provide mill test certificates confirming alloy composition meets 'other alloy steel' criteria per chapter note (e)
• Ensure ingots weigh over 500g to avoid Chapter 71 classification
• Watch for misclassification as stainless if chromium exceeds 10.5%
Related Products under HTS 7224.10.00
Maraging C250 Nickel Alloy Steel Ingots
Vacuum induction melted ingots of Maraging C250 ultrahigh-strength steel with 18% nickel for rocket motor casings. HTS 7224.10.00 as primary other alloy steel, distinguished from stainless by processing.
AISI 4340 Nickel-Chromium-Molybdenum Steel Ingots
Large remelted ingots of AISI 4340 low-alloy steel used in aerospace and automotive forgings, containing nickel, chromium, and molybdenum. Falls under HTS 7224.10.00 as primary forms of alloy steel not qualifying as tool, ball-bearing, or heat-resisting steel per chapter notes.
AISI 8620 Carburizing Steel Ingots
Primary ingots of AISI 8620 low-alloy case-hardening steel for gear and shaft production, with nickel, chromium, and molybdenum additions. HTS 7224.10.00 applies to these non-specialty alloy steel ingots before hot-rolling or forging.
EN24 Chromium-Molybdenum Alloy Steel Ingots
Heavy forging ingots of EN24 grade alloy steel (45NiCrMo4 equivalent) for high-stress components like crankshafts. Classified in HTS 7224.10.00 as other alloy steel primary forms, excluding defined specialty steels.
AISI 9310 Aerospace Grade Alloy Steel Ingots
Vacuum-remelted ingots of AISI 9310 nitriding steel for aircraft gears and bearings, alloyed with nickel, chromium, molybdenum. HTS 7224.10.00 covers these as primary forms of unspecified other alloy steels.
17-4PH Precipitation Hardening Stainless Steel Ingots
Argon-oxygen decarburized ingots of 17-4PH martensitic precipitation hardening stainless steel for valve and pump parts. Though stainless (>10.5% Cr), classified under 7224.10.00 as primary forms of alloy steel not separately specified.