4-1/2 Inch N80 Casing for Gas Wells from Japan
Seamless N80 nonalloy steel casing with 114.3 mm OD and 7.0 mm wall thickness, used to stabilize gas well bores during drilling operations. Classified under HTS 7304.29.20.10 due to its seamless construction, nonalloy steel material, and specified dimensions for oil/gas drilling applications.
Duty Rate — Japan → 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
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include thread type specifications (e.g
• LTC, STC) in documentation as they affect fitting compatibility but not HTS classification
• Conduct hydrostatic test certificates must show pressure ratings compliant with API standards