AISI 4340 Hot-Extruded Alloy Steel Hexagonal Rod from China
AISI 4340 nickel-chromium-molybdenum alloy steel hexagonal rod, hot-extruded for high-stress aircraft landing gear and crankshafts. HTS 7228.30.80 covers other alloy steel rods not further worked than hot-rolled, drawn, or extruded. Exceeds carbon steel alloy thresholds.
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
• Document hot-extrusion process to distinguish from forged products under 7228.40
• Verify not qualifying as high-strength steel per note (a); yield >355 MPa may trigger different rates
• Include heat treatment records if normalized, but avoid finish-worked descriptions