AISI 4140 Alloy Steel Round Billet
A round semi-finished billet made from AISI 4140 chromium-molybdenum alloy steel, with circular cross section, used primarily for forging into shafts and gears. Classified under HTS 7224.90.0065 as other alloy steel semi-finished products of circular cross section in primary forms. Meets alloy steel definition due to chromium and molybdenum content exceeding specified thresholds.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing 4% or more chromium by weight
High-chromium content qualifies as stainless steel, moving to 7224.10 heading per Chapter 72 notes.
If not meeting alloy steel elemental thresholds
Fails alloy steel definition in note (a), classified as semi-finished carbon steel instead.
If rectangular or square cross section
Cross section shape determines subheading; non-circular billets go to other 'other' categories.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide mill test certificates verifying alloy composition (Cr, Mo content) to confirm classification as alloy steel
• Ensure product dimensions confirm circular cross section under 230 mm diameter to avoid reclassification
• Declare exact carbon equivalent and heat analysis to prevent disputes over 'other alloy steel' status
Related Products under HTS 7224.90.00.65
EN19 Alloy Steel Round Bloom
EN19 grade alloy steel round bloom with circular cross section, semi-finished product for hot rolling into bars or tubes. Falls under HTS 7224.90.0065 as other alloy steel in primary forms due to manganese and chromium alloying elements. Typically used in manufacturing axles and crankshafts.
42CrMo4 Alloy Steel Round Semi-Finished Billet
42CrMo4 grade alloy steel billet with precise circular cross section, in semi-finished form for machining into mechanical components. HTS 7224.90.0065 applies to other alloy steel primary products distinguished by circular shape. Contains Cr 0.9-1.2% and Mo 0.15-0.3% qualifying as alloy per Chapter notes.
15NiCrMo16-4 Alloy Steel Round Ingot
15NiCrMo16-4 carburizing alloy steel round ingot with circular cross section, primary form for gear manufacturing. HTS 7224.90.0065 covers other nickel-chromium-moly alloy steels in this form. Ni-Cr-Mo composition exceeds carbon steel alloy limits per US note definitions.
34CrNiMo6 Alloy Steel Semi-Finished Round
34CrNiMo6 high-strength alloy steel semi-finished round of circular cross section for heavy-duty shafts. Classified under HTS 7224.90.0065 as other alloy steel primary products. Multi-element alloying (Cr, Ni, Mo) distinguishes from plain carbon steels.
AISI 4340 Nickel-Chromium-Moly Steel Round Bloom
AISI 4340 high tensile strength alloy steel round bloom with circular cross section for aircraft landing gear. Classified HTS 7224.90.0065 as other alloy (Ni-Cr-Mo) steel in primary forms. Widely used structural alloy meeting multiple Chapter 72 alloy definitions.
SCM440 Alloy Steel Circular Bloom
SCM440 Japanese standard alloy steel bloom featuring circular cross section, primary form for forging automotive parts. Classified HTS 7224.90.0065 as other alloy (Cr-Mo series) semi-finished product. Excludes stainless and tool steel categories per Chapter 72 note specifications.