"4-1/2\" 10.50 from China
4-1/2 inch OD 10.50 lb/ft 9Cr-110 seamless alloy tubing for high-strength casing/tubing strings. 9.19 mm wall thickness maximizes ID in slimhole applications. HTS 7304.29.61.15 designation for alloy drilling tubing ≤114.3 mm OD.
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
• Confirm OD exactly 114.3 mm max; 4.5" nominal = 114.3 mm
• Wall thickness certs critical as 10.50# pushes near 9.5 mm limit
• Separate pup joints if lengths <3m to avoid parts classification