Heat Exchanger Tube 200mm OD ASTM A179 from Japan
Cold-drawn seamless carbon steel tube, 200 mm outside diameter, manufactured to ASTM A179, optimized for condenser and heat exchanger shells in refining processes. The tube provides excellent heat transfer and corrosion resistance in water-steam cycles, and as a seamless iron or non-alloy steel product with circular cross-section, it falls under tariff item 7304.39.00.
Duty Rate — Japan → Canada
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Import Tips
• Verify the tube's outside diameter (200 mm) and ASTM A179 specification with a mill certificate
• Ensure the tube is not part of a heat exchanger unit that may be classified under Section XVI
• Confirm the non-alloy steel composition to support classification under 7304.39.00