7 Inch K-55 BTC Coupled Casing from China
K-55 grade 7-inch casing with Buttress Threaded and Coupled (BTC) connections for production zones in gas wells. Under HTS 7306.29.31.00 for its welded, threaded design tailored to oil/gas drilling. Offers balanced strength and cost for intermediate applications.
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
• Use ISPM-15 certified wooden dunnage for shipping to prevent quarantine issues
• Document exact coupling type (BTC, STC) as mismatches cause rejections