10-1/2 inch 79# C-110 Duplex Stainless Casing from China
C-110 grade duplex stainless seamless casing pipe, 10-1/2 inch OD (266.7 mm), 79 lb/ft, 19.1 mm wall thickness, VAM 21RPX premium threads for deepwater applications. Perfect match for 7304.24.30.40: stainless steel, seamless, oil/gas casing, 215.9-285.8 mm OD class, heavy wall ≥12.7 mm.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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
Import Tips
• Confirm PREN value >40 for duplex stainless verification; check for hydrogen embrittlement testing; avoid mixing with carbon steel accessories during customs exam