K55 Casing and Tubing from China
K55 grade non-alloy steel tubing used interchangeably as casing or tubing in shallow oil/gas wells. Falls under HTS 7306.29.6050 for other nonalloy steel tubing in drilling. Offers higher collapse resistance for challenging environments.
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
• Dual-use documentation should specify primary drilling function to secure classification
• Test for yield strength compliance with API to prevent rejection