T11 Alloy Heat Exchanger Tube OD 31.75mm from United States
Seamless ASTM A335 Grade T11 alloy steel tube with a 31.75 mm outside diameter, optimized for condensers and feedwater heaters in refining furnaces. Its low alloy content provides creep resistance under thermal stress. Classified under tariff item 7304.59.00 as other seamless tubes of circular cross-section in other alloy steel.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Provide ASTM A335 certification and a detailed chemical composition report to support the alloy steel classification
• Declare the exact outside diameter, as sizes under 38.1 mm may require specific statistical codes
• Verify if the product is eligible for duty-free entry under the Most-Favoured-Nation (MFN) rate or a free trade agreement