18.5-Inch Surface Casing Tube
Welded surface casing pipe of iron/nonalloy steel with an 18.5-inch OD, used in gas well drilling to isolate freshwater zones and provide blowout protection. It falls under tariff item 7305.20.00 as casing used in drilling for oil or gas.
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 casing is not for oil or gas drilling
Other welded tubes of circular cross-section.
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
• Verify the casing is welded and nonalloy steel
• Provide documentation on the OD and intended use
• Ensure compliance with API standards for gas drilling
Related Products under Tariff item 7305.20.00
16-Inch OD L80 Coupled Casing for Gas Wells
Welded nonalloy steel casing with a 16-inch outer diameter, L80 grade, with coupled ends. It is used to line and support oil or gas well bores during drilling operations, falling under tariff item 7305.20.00 for casing of a kind used in drilling for oil or gas.
16-Inch OD Welded Oil Well Casing
Heavy-duty welded casing tube of nonalloy steel with a 16-inch external diameter, used in oil drilling to prevent borehole collapse and protect aquifers. It is classified under tariff item 7305.20.00 as casing used in drilling for oil or gas.
17-Inch Intermediate Casing Pipe
17-inch OD welded intermediate casing of nonalloy steel for multi-stage oil drilling support. This product is classified under tariff item 7305.20.00 as casing used in drilling for oil or gas.
18-5/8 Inch N80 Threaded Drilling Casing
Threaded nonalloy steel casing pipe with an 18-5/8 inch outer diameter, N80 grade, welded for use in stabilizing boreholes during oil and gas extraction. This product is classified under tariff item 7305.20.00 as casing used in drilling for oil or gas.
20-Inch Conductor Casing Pipe
Extra-large welded nonalloy steel conductor casing with a 20-inch external diameter, installed first in offshore/onshore drilling to support the initial borehole and resist high loads. This product is classified under tariff item 7305.20.00.
20-Inch OD K55 Coupled Oil Well Casing
A 20-inch outer diameter coupled casing pipe made from K55 nonalloy steel, used to line and stabilize oil or gas wells during drilling. It is classified under tariff item 7305.20.00 due to its welded construction and threaded/coupled joints.