Marine Grade Stainless Sleeve Coupling 4 Inch
254 SMO super austenitic stainless threaded sleeve for seawater desalination plants, 4 inch size. Classifies HTS 7307.22.10.00 as stainless threaded pipe sleeve. Exceptional chloride pitting resistance for marine environments.
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% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other threaded shape
Non-sleeve threaded stainless like return bends separate.
If imported as flat-rolled stock
Material form before machining affects chapter classification.
If part of seawater pump
Pump-specific corrosion parts follow machinery parts HTS.
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
• Provide PREN value (pitting resistance equivalent) documentation
• Comply with marine classification society approvals if required
• Declare country of melt for super-austenitic stainless traceability
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