Carbon Steel Seamless Duct Pipe OD 270mm WT 9mm
Seamless carbon steel duct pipe for industrial ventilation systems, OD 270mm, 9mm wall, ensuring airtight pressure handling. Falls under 7304.39.0048 as other seamless iron/non-alloy tubes of circular section in range. Galvanizing optional for corrosion resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If square/rectangular profile
Non-circular hollow profiles classify under 7306.90.
If pre-bent into bridge components
Fabricated into structures moves to 7308.10 for bridges.
If for industrial fans/blowers
End-use as fan casings shifts to 8414 air pumps.
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Import Tips & Compliance
• Galvanizing doesn't change classification if applied post-forming
• Confirm roundness tolerances within 1% for OD compliance
• Ship in racks to maintain straightness under 0.2% deviation
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