17-4 PH Stainless Steel Square Billet from China
Precipitation hardening 17-4 PH stainless steel in square cross-section with side length <4x thickness (square), primary form for aerospace components. HTS 7224.90.0045 covers alloy steel semi-finished products where width doesn't reach 4x thickness threshold. Stainless steel qualifies as alloy steel under Chapter 72 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
• Include precipitation hardening certification; Measure exact square dimensions to confirm <4x ratio; Stainless steel requires corrosion resistance test results if requested by customs