AISI 4340 Nickel-Chromium-Moly Steel Round Bloom from China
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 — 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
• 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