18.5-Inch Surface Casing Tube from United States
Welded surface casing pipe of iron/nonalloy steel with an 18.5-inch outer diameter exceeding 406.4 mm, used in gas well drilling to isolate freshwater zones and provide blowout protection. This fits the tariff item's scope.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Verify the casing is nonalloy steel and OD exceeds 406.4 mm
• Provide API 5CT documentation
• Ensure the casing's end finish (threaded or coupled) is correctly declared