4140 Seamless Alloy Steel Tubing from Mexico
Hot-finished seamless tubing of 4140 chrome-moly alloy steel, wall thickness 2-3 mm, supplied in rounds for mechanical applications. Classified in 7304.90.70.00 due to alloy steel composition and thin walls. Ideal for shafts, axles, and structural components requiring strength.
Duty Rate — Mexico → United States
10%
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
Import Tips
• Include chemical analysis report specifying chromium/molybdenum content to prove alloy steel status
• Label as 'seamless' on commercial invoice; customs may inspect for weld seams
• Avoid misdeclaration as drill pipe—ensure end-use statement if applicable to prevent anti-dumping scrutiny