17-1/2 inch 98 lb/ft Sour Service Casing from Japan
17-1/2 inch OD (444.5 mm >406.4 mm) seamless alloy steel casing, 98 lb/ft, H2S-resistant for sour gas drilling. Under HTS 7304.29.4180 as other alloy seamless large-diameter casing for oil/gas. Meets stringent NACE standards for corrosive environments.
Duty Rate — Japan → United States
10%
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
Import Tips
• Attach NACE compliance docs; critical for sour service alloy validation
• Specify exact chromium/molybdenum content for 'alloy steel' proof