310 Stainless Seamless Furnace Tubing 4-inch
Seamless 310 high-temperature stainless steel tubing, 4-inch, with circular cross-section, used for furnace muffles and thermowells. It offers oxidation resistance up to 2000°F. This product is classified as 'other' seamless stainless steel tubing.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 the tubing is cold-drawn or cold-rolled
Cold-drawn or cold-rolled seamless stainless tubes are classified under a different tariff item.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the 310 grade and high-temperature application to support classification
• Ensure the tubing is not cold-drawn or cold-rolled
• Consider whether the tubing is for industrial furnace use, which may require additional certifications
Related Products under Tariff item 7304.49.00
17-4 PH Stainless Steel Hollow Bar for Aerospace
Precipitation-hardening 17-4 PH stainless steel seamless hollow bar used for aircraft structural components. This hollow bar has a circular cross-section and is designed for high-stress aerospace applications requiring high strength and corrosion resistance. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.
2205 Duplex Feedwater Heater Tube
Seamless duplex 2205 stainless steel replacement tubes for high-pressure feedwater heaters, offering improved fatigue resistance over 316L. These tubes are of circular cross-section and are classified under tariff item 7304.49.00 as other seamless stainless steel tubes.
2209 Super Duplex Seamless Pipe 6-inch
Seamless 2209 super duplex stainless steel pipe, 6-inch NPS, with circular cross-section, designed for desalination plants. Its high pitting resistance (PREN >40) makes it suitable for harsh chloride environments. This product is classified as 'other' seamless stainless steel pipe, not cold-drawn or further worked.
25-6MO Stainless Condenser Service Tube
Seamless 25-6MO (UNS N08925) stainless steel tubes for condenser service in combined cycle plants, optimized for cooling water with chlorides. These tubes are of circular cross-section and are classified under tariff item 7304.49.00 as other seamless stainless steel tubes.
304L Seamless Stainless Pressure Tubing 1-inch
Seamless 304L low-carbon stainless steel pressure tubing, 1-inch OD, with circular cross-section, used in hydraulic pressure systems. The low carbon content improves weldability and corrosion resistance. It falls under 'other' seamless stainless steel tubes, not further worked.
304L Stainless Steel Hollow Bar for Pump Shafts
Low-carbon 304L stainless steel seamless hollow bar with a circular cross-section, designed for pump shaft sleeves. The low carbon content improves weldability, making it suitable for fluid handling applications. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.