88.9mm OD Alloy Steel Boiler Tube
Seamless alloy steel tube, 88.9 mm OD with 5 mm wall, engineered for superheater sections in industrial boilers. Meets HTS 7304.59.80.15 criteria as other alloy steel, circular seamless, within 38.1-114.3 mm OD and thin wall. Withstands high temperatures and pressures.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cold-drawn or finished for boiler use
Specific cold-drawn boiler tubes have dedicated subheadings under 7304.41.
If Threaded/tapped tube ends classify under 7307 for tubular fittings.
If imported as part of boiler assembly
End-use in steam boilers shifts to Chapter 84 machinery parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Obtain pressure vessel certification if marketed for boilers to support valuation
• Document seamless process (e.g
• extrusion or piercing) to distinguish from welded
• Beware of reclassification if bundled with fittings as a set
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