0.8mm 4140 Chrome-Moly Alloy Round Wire
4140 chrome-molybdenum alloy steel round wire, 0.8mm diameter, for mechanical springs and fasteners. HTS 7229.90.50 covers this non-stainless, non-tool alloy steel round wire in drawn condition without further working. Alloy elements below tool steel thresholds per note (e).
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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 considered tool steel per note (e)
Specific chrome/moly combinations meeting tool steel criteria classify under 7224.
If for heat-resisting applications
Heat-resisting alloy steel (note g) with low carbon/high chrome moves to 7228.50.
If further manufactured into chain
Round wire links made into chain become articles of heading 7310.
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Import Tips & Compliance
• Submit chemical analysis proving chromium/moly levels don't meet tool steel definition
• Avoid common error of declaring as carbon steel; alloy threshold is 1.65%+ elements
• Document intended use optional but helps binding ruling requests for end-use verification
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