Seamless Steel Chimney Flue Pipe
Extra-large seamless carbon steel flue pipes for industrial chimneys, OD >406.4 mm, wall <19 mm. Under 7304.39.0076 as seamless non-alloy steel tubes. Seamless construction prevents exhaust leaks in high-temperature stacks.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fitted with expansion joints
Pipe fittings with mechanical connections classify under 7307.
If stainless steel grade
Corrosion-resistant stainless flues use alloy steel provisions.
If assembled as complete furnace components
Integral furnace/burner assemblies become industrial machinery parts.
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Import Tips & Compliance
• High-temperature service requires specific alloy verification despite non-alloy heading
• Expansion joint provisions affect customs valuation
• Fire safety certifications may trigger additional inspections
Related Products under HTS 7304.39.00.76
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