Grade K55 Oil Well Casing from Mexico
Grade K55 casing is a welded non-alloy steel pipe designed for intermediate oil well sections, offering higher collapse resistance than J55 grades. Classified under HTS 7306.29.2000 as 'other' iron/nonalloy steel casing for drilling, it supports cementing and pressure containment in drilling operations. Threads are typically BTC (Buttress Threaded and Coupled) for secure joints.
Duty Rate — Mexico → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Include hydrostatic test certificates proving pressure ratings suitable for drilling casing use
• Label clearly as 'oilfield casing' to prevent misclassification as line pipe under Chapter 73 headings