13-3/8 Inch N80 Threaded Oil Well Casing from Japan
Heavy-duty 13-3/8 inch N80 grade seamless nonalloy steel casing, externally threaded for field coupling in deep oil wells. Essential for borehole integrity during gas drilling. Covered by 7304.29.10 as other casing of nonalloy steel that is threaded.
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
• Submit chemical composition certificates proving nonalloy status (carbon steel with minimal alloy elements)
• Use BTC (Buttress Threaded and Coupled) or STC threading notations in invoices to match HTS criteria
• Avoid bulk packaging without individual protection; damaged threads lead to rejection and reclassification risks