Incoloy 800H Welded Feedwater Heater Tube
Welded circular tube of Incoloy 800H nickel-iron-chromium alloy steel, wall thickness 1.65 mm+, for feedwater heaters in thermal power stations. Provides creep resistance at elevated temperatures. HTS 7306.50.5010 applies to such welded alloy tubes for feedwater heaters.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not proven suitable for named equipment
Lack of specific use documentation defaults to general welded alloy tube subheading.
If considered hollow bars rather than tubes
Hollow profiles not functioning as tubes classify under Chapter 72 semi-finished products.
If imported as fabricated heater components
Machined or assembled parts for heaters classify under other steel articles.
Not sure which classification is right?
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Import Tips & Compliance
• Nickel alloy content requires special HTS verification; may need Chapter 72 analysis
• Pre-shipment NDT reports (radiography/ultrasound) essential for weld quality assurance
• Specify U-bend configuration if applicable; straight lengths vs bends affect packaging
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