High-Pressure Alloy Steel Welded Pipe for Power Plant Cooling
Alloy steel pipe longitudinally welded with OD >406.4 mm for circulating water in thermal power plant cooling systems. Under HTS 7305.31.60 as other large welded circular tubes. Resistant to thermal fatigue.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
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.
If specific statistical requirements met
Precision tolerances or grades trigger statistical breaks within 7305.31.
If as parts of turbo-generators
Power plant-specific use as generator parts shifts to Chapter 84.
If of galvanized sheet
Galvanized material source changes base heading to 7301 for welded tubes.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include thermal conductivity specs if relevant, but focus on alloy certs for classification
• Mark 'industrial bulk' to avoid retail packaging scrutiny
Related Products under HTS 7305.31.60
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.
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.