Alloy Steel Seamless Hollow Profile for Structural Supports from China
Seamless hollow profile of alloy steel (e.g., AISI 4140) with wall thickness 4 mm or more, used in heavy machinery structural frames. HTS 7304.90.30.00 covers such thick-walled seamless hollow profiles of alloy steel.
Duty Rate — China → United States
17.5%
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
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Import Tips
• Define cross-section in docs to confirm 'hollow profile' vs round tube
• Alloy certification critical; 4140 has Cr/Mo for strength