AISI 4340 Nickel-Chromium-Moly Steel Round Bloom from Mexico
AISI 4340 high tensile strength alloy steel round bloom with circular cross section for aircraft landing gear. Classified HTS 7224.90.0065 as other alloy (Ni-Cr-Mo) steel in primary forms. Widely used structural alloy meeting multiple Chapter 72 alloy definitions.
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
• AMS 6414 aerospace spec certification strengthens alloy steel classification claim
• Measure exact diameter; over 150 mm may trigger universal mill plate scrutiny
• Prevent reclassification by proving no box pass rolling occurred during production