Incoloy 800 Boiler Tube
Seamless tube made from Incoloy 800 alloy steel, designed for high-temperature applications in industrial boilers. Its heat-resisting properties allow it to withstand extreme temperatures and corrosive environments in superheaters and steam generators. Classified under 7304.59.20.30 due to its seamless construction, circular cross-section, and suitability for boilers made of heat-resisting steel.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not heat-resisting alloy
Standard alloy steel tubes without heat-resisting properties fall under cold-drawn other alloy steel category.
If welded instead of seamless
Welded tubes of heat-resisting steel for similar applications are classified in Chapter 73 heading for welded pipes.
If imported as part of a complete heat exchanger
If supplied as an assembled component of machinery rather than standalone tube, it may classify under heat exchanger parts.
Not sure which classification is right?
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Import Tips & Compliance
• Verify alloy composition certification to confirm heat-resisting steel status; ensure seamless manufacturing process documentation; avoid misclassification by specifying boiler end-use in invoices
Related Products under HTS 7304.59.20.30
RA333 Furnace Tube
Seamless RA333 heat-resisting steel tube for refining furnaces, enduring carburizing atmospheres and temperatures up to 1800°F. Used in petrochemical heat exchangers. 7304.59.20.30 applies for its alloy steel composition, seamless circular form, and furnace suitability.
310 Stainless Boiler Tube
Seamless 310 stainless steel tube certified heat-resisting for boiler tubes in high-temperature service. Resists scaling in superheaters and feedwater heaters. Fits HTS 7304.59.20.30 as other alloy steel (heat-resisting), seamless, circular, boiler-suitable.
Alloy 20 Feedwater Heater Tube
Seamless Alloy 20 tube for feedwater heaters in power plants, corrosion-resistant in chloride environments at elevated temperatures. Suitable for heat exchangers. Classified 7304.59.20.30 for heat-resisting properties, seamless construction, and specified equipment use.
253MA Heat Exchanger Tube
Seamless 253MA austenitic steel tube for heat exchangers in boilers, with nitrogen-enhanced heat resistance up to 2000°F. Used in refining applications. 7304.59.20.30 due to heat-resisting alloy, circular seamless profile, heat exchanger suitability.
AL-6XN Condenser Tube
Seamless AL-6XN super-austenitic tube for seawater condensers and heat exchangers, offering pitting resistance at high temperatures. For power and refining. Meets 7304.59.20.30 as heat-resisting seamless alloy steel tube for condensers.
Haynes 230 Superheater Tube
Seamless Haynes 230 nickel-chromium alloy tube for gas turbine superheaters and industrial boilers. Exceptional high-temperature strength. 7304.59.20.30 classification for heat-resisting steel, seamless, circular, superheater use.