Cold-Finished Maraging Alloy Steel Round Bar from China
C250 maraging steel bar (18% Ni, Co, Mo), cold-finished 30 mm diameter for rocket motor cases. Under HTS 7228.50.5015 as cold-finished alloy steel <76 mm cross-section. Ultra-high strength from precipitation aging of low-carbon martensite.
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
• Provide aging heat treatment specification in material certs
• Document solution treatment prior to cold-finishing process
• Confirm compliance with ITAR if defense-related end use