3-1/2 inch Super Duplex Tubing from United States
Welded super duplex stainless steel (grade 2507) tubing, 3-1/2 inch in diameter, designed for ultra-corrosive oil and gas wells with high chloride content. This product is used as tubing in drilling operations and is classified under tariff item 7306.21.00 as welded stainless steel casing and tubing.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Ensure the tubing meets CSA or API standards and provide a Mill Test Certificate to verify the 2507 grade
• Declare the correct end use (drilling for oil or gas) to avoid reclassification
• Consult the CBSA tariff classification advice if unsure about the welded stainless steel specification