AISI 4140 Chromium-Molybdenum Alloy Steel Wire
AISI 4140 chromoly wire for machinery parts and fasteners, containing 0.4% carbon, 1% chromium, 0.2% molybdenum. HTS 7229.90.90.00 covers this as other alloy steel wire, not qualifying as tool steel per U.S. note (e). Supplied in drawn condition, 1-10mm diameter.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If tool steel composition
Meets U.S. note (e)(iv) criteria for Cr-Mo tool steel, moving to heading 7228.
If flat-rolled not wire
Same alloy in flat-rolled form (not wire dimensions) under heading 7217 other bars.
If coated with plastics
Further worked with nonmetallic coating per Chapter note excludes from uncoated 'other wire'.
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Import Tips & Compliance
• Include carbon equivalence calculations if heat-treated; declare tensile strength for potential high-strength steel review; avoid bundling with carbon steel to prevent misclassification
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