AISI 4340 Hot-Rolled Alloy Steel Shaft Blank from China
300 mm diameter hot-rolled bar of AISI 4340 nickel-chromium-molybdenum steel for aircraft landing gear. Falls under HTS 7228.30.80.70 as other hot-rolled alloy steel bars exceeding 228 mm cross-section, not further worked. Offers superior fatigue resistance for aerospace components.
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
• Include heat treatment records showing as-rolled condition, not normalized or quenched
• Document minimum alloy content (Ni, Cr, Mo) to confirm alloy steel per Chapter 72 note definitions
• Avoid shipments with mill scale removal that might constitute 'further worked' treatment