Boiler Economizer Tube 230mm OD BS 3059 Grade 360 from United States
Seamless carbon steel tube to BS 3059 Grade 360, with a 230 mm outside diameter, used in economizer sections to preheat boiler feedwater and enhance efficiency in recovery boilers. As a seamless iron or non-alloy steel product with circular cross-section, it is classified under tariff item 7304.39.00.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Note that this tube's outside diameter (230 mm) exceeds 190.5 mm, so confirm it still falls under 7304.39.00 as 'other' seamless tubes
• Provide the BS 3059 Grade 360 certificate to prove the non-alloy steel composition
• Check if the tube requires additional testing for high-temperature service