4.5-inch P110 Alloy Steel Casing Tubing from Japan
Seamless P110 grade alloy steel tubing with 4.5-inch (114.3 mm) OD and 12 mm wall thickness, used as casing in oil well drilling to line boreholes. Meets HTS 7304.23.60.45 criteria as seamless alloy steel drill pipe/casing with OD ≤168.3 mm and wall >9.5 mm.
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
• Hydrostatic test certificates required to prove pressure rating meets API 5CT P110 specifications
• Clearly mark 'OIL WELL CASING' on packaging and documentation to distinguish from line pipe
• Verify chrome/moly content in alloy analysis to confirm classification as alloy steel vs carbon steel