Alloy Steel Mega Pipe for Urban Sewage Tunnels
Extra-large longitudinally welded alloy steel pipe (>48" OD) for main sewage conveyance tunnels. HTS 7305.31.60: welded circular alloy tubes >16". Stainless-clad for durability.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
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
• Tunnel project specs aid but form dictates HTS
• Wall thickness certs prevent thin-wall errors
• Bulk ship only; sets → potential 7326
Related Products under HTS 7305.31.60
Wind Farm Foundation Alloy Steel Transition Pipe
Longitudinally welded alloy steel pipe >406.4mm connecting monopile to tower in offshore wind foundations. HTS 7305.31.60 large welded tubes. API 2W Grade 50.
Refinery Flare Stack Alloy Steel Riser Pipe
High-temperature alloy steel longitudinally welded pipe >16" for flare stack risers in oil refineries. HTS 7305.31.60: other large welded alloy circular. 5Cr-0.5Mo grade.
HVDC Cable Protection Alloy Steel Pipe
Concrete-filled capable alloy steel pipe >406.4mm for protecting submarine HVDC cables on seabed. HTS 7305.31.60 welded large alloy tubes.
LNG Terminal Cryogenic Alloy Steel Pipe
9%Ni alloy steel longitudinally welded pipe >16" for LNG tank vaporizers/transfer lines. HTS 7305.31.60 large welded alloy circular.
Heavy Mining Conveyor Gallery Support Pipe
Alloy steel longitudinally welded large pipe (>406mm) for elevated conveyor gallery trusses in open-pit mines. HTS 7305.31.60: structural large tubes welded alloy.
Longitudinally Welded Alloy Steel Pipe for Oil Pipelines
This large-diameter pipe, with an external diameter over 406.4 mm, is made from alloy steel and longitudinally welded for high-pressure oil transportation. It falls under HTS 7305.31.60 due to its circular cross-section, welded construction, and alloy steel material exceeding the size threshold. Primarily used in midstream oil and gas infrastructure.