5-1/2 inch 20 lb/ft Q125 High-Collapse Casing from China
Q125 grade seamless alloy steel casing with 5.5-inch OD (139.7 mm), 15.9 mm wall thickness exceeding 12.7 mm, 20 lb/ft, designed for high-collapse resistance in oil/gas wells. Fits HTS 7304.29.4120 as other alloy steel, smaller OD, thick wall casing for drilling. Ideal for challenging geological formations.
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
• Include collapse test data in documentation to justify high-strength alloy classification
• Avoid bulk packaging that obscures markings; ensure API monogram visible for inspection