AISI 4340 Nickel-Chromium-Molybdenum Wire
AISI 4340 alloy wire for aircraft landing gear and shafts, Ni-Cr-Mo composition for toughness. Classified HTS 7229.90.90.00 other alloy steel wire, not tool steel. Quenched/tempered capability, 2-12mm diameter.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If forged not drawn wire
Forged alloy steel bars/shapes under 7224, distinct from drawn wire processes.
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Import Tips & Compliance
• Include Charpy impact test results; declare alloy grade per AMS specs; aerospace wire may need FAA documentation
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