Stainless Steel Heat Exchanger Tubing 63.5mm OD
Welded TP304 stainless heat exchanger tube, 63.5 mm (2.5") OD, 2.8 mm wall, 9% nickel. HTS 7306.40.50.64 for welded stainless circular tube, thick wall, appropriate OD/nickel. Annealed for thermal transfer efficiency.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless heat exchanger tubes
Seamless versions for boilers/exchangers in 7304.41.
If pre-installed in exchanger units
Assembled into machinery, Chapter 84 applies.
If duplex stainless grades
Duplex alloys often exceed nickel limits or have different headings.
Not sure which classification is right?
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Import Tips & Compliance
• U-bent exchanger tubes still classify as tubes if not assembled
• ASTM A249/A269 specs common; reference in entry docs
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