0.8mm 4140 Chrome-Moly Alloy Round Wire from China

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).

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter

Import Tips

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