Nitrided Alloy Steel Mandrel Bar Tube from China
Surface-nitrided 4340 alloy steel hollow mandrel bars used in tube drawing operations. 7306.90.5000 for specialized alloy steel hollow profiles in metalworking.
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
• Nitriding depth/process documentation essential for surface treatment valuation
• Declare as 'hollow mandrel bar', not solid bar to prevent reclassification
• Industrial end-use certificates prevent consumer goods scrutiny