5-1/2 inch L80-9CR Casing from China
9% Chromium L80-9CR seamless casing pipe, 5-1/2 inch OD with wall thickness under 12.7 mm, featuring VAM TOP threaded and coupled connections. Designed for sour service (H2S) environments in gas wells. Falls under HTS 7304.29.31.10 as other alloy steel seamless casing for drilling operations.
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 NACE MR0175/ISO 15156 certification for sour service materials
• Specify chromium content (9%) in material certificates to confirm alloy classification
• Document connection type (VAM TOP) as premium threaded connection