Cold-Rolled 4130 Chrome-Moly Precision Tube from China
Seamless cold-rolled tube from 4130 chromium-molybdenum alloy steel, circular cross-section for aircraft structural components. Classified in HTS 7304.51.50 as 'other' cold-reduced seamless alloy steel tubes, excluding those for boilers or pressure vessels. High strength-to-weight ratio suits aerospace applications.
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
• Obtain chemical analysis certificate proving chrome-moly alloy (e.g
• 0.8-1.1% Cr, 0.15-0.25% Mo)
• Avoid misclassification as hot-finished; cold-rolled surface finish is key evidence
• For sets with fittings, principal article rules may apply Chapter 73 but watch for set provisions