13-3/8 Inch N80-Type Welded Stainless Casing from China
13-3/8 inch welded stainless steel casing equivalent to N80 grade for surface casing in onshore oil drilling, offering high collapse resistance and weld seam integrity. Used to stabilize the upper wellbore sections. HTS 7306.21.40.00 applies to this other welded stainless casing category.
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 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
• Provide non-destructive testing (NDT) reports for welds to satisfy importer security filing (ISF) and customs exam requirements
• Avoid common pitfall of undervaluing based on weight; use transaction value with freight-inclusive pricing
• Register with PipeLogix or similar for traceability if re-exporting to Gulf of Mexico rigs