12-1/4 Inch V150 Sour Service Casing from China
Seamless V150 alloy steel casing optimized for H2S sour service, 12-1/4 inch (311.15 mm) OD, 17 mm wall thickness. Classifies HTS 7304.29.4160 as other alloy seamless casing in OD range with heavy wall for structural support.
Duty Rate — China → United States
75%
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
9903.91.0125%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
9903.05.900%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; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• NACE MR0175/ISO 15156 certification mandatory for sour service alloy classification
• Wall thickness variation tolerance must be documented (<12.5% under nominal)
• Ensure invoice specifies 'casing' not 'tubing' to avoid 7304.23 misclassification