AISI 4140 Alloy Steel Round Wire 3mm from China
Round wire of chromium-molybdenum alloy steel (AISI 4140) with a diameter of 3 mm, used for manufacturing high-strength fasteners and shafts. Classified under HTS 7229.90.50.51 as other alloy steel round wire with diameter 1.5 mm or more, not meeting specific alloy steel definitions like high-strength, tool, or ball-bearing steel. Supplied in coils for further drawing or cold heading.
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
• Provide mill test certificate verifying alloy composition and diameter; ensure wire is not high-strength steel per note (a) to avoid reclassification
• Check for rust/discoloration as no duty allowance per chapter note
• Declare exact diameter measurement method