Seamless Incoloy 800H Heat Exchanger Tube
Cold-drawn seamless tube from Incoloy 800H nickel-chromium alloy steel, heat-resisting for shell-and-tube heat exchangers in refineries. Provides creep resistance at elevated temperatures in corrosive environments. Under 7304.51.50.15 for cold-reduced seamless heat-resisting steel tubes suitable for heat exchangers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If manufactured as U-bends or return bends
Specific U-shaped tubes for heat exchangers have a statistical breakout, differing by formed configuration.
If not certified for boiler/heat exchanger pressure use
Cold-rolled hollow bars of alloy steel without specific end-use suitability remain in Chapter 72 as semi-finished.
If lined with ceramic for extreme corrosion
Ceramic-clad steel tubes shift to Chapter 69 for refractory-metal composites.
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Import Tips & Compliance
• Submit alloy analysis confirming >1.5% chromium and nickel content qualifying as heat-resisting steel per HTS notes
• Avoid reclassification by proving individual tube import vs. exchanger assembly; provide end-use affidavits if needed
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