Cold-Finished RA85H Feedwater Heater Tube
Seamless cold-finished RA85H heat-resisting steel tube for high-pressure feedwater heaters in fossil fuel plants. Features enhanced thermal conductivity and erosion resistance. Under 7304.51.50.15 for its cold-reduced form and specified end use in feedwater heaters.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with external fins or flutes
Mechanically modified surface tubes (e.g., finned) have separate provisions.
If of non-heat-resisting alloy steel
Lack of high-temperature certification moves to general cold-drawn alloy tubes.
If imported bulk as heat exchanger spare parts
Sold for machinery repair rather than standalone classifies under end-use machinery chapter.
Not sure which classification is right?
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Import Tips & Compliance
• Include EAC certificate for Russian/Eurasian imports; common for power plant tubes
• Declare exact alloy grade; generic 'stainless' leads to 7304.41 audits
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