7 Inch N80 Casing for Gas Wells
Seamless N80 grade nonalloy steel casing, 7-inch OD for gas well liners. Withstands corrosive gas environments. Under 7304.29.20 as other iron/nonalloy casing for drilling.
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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 welded construction
Welded casing moves to 7306.30 for other welded tubes/pipes.
If alloy steel version
N80 in alloy form exceeds nonalloy thresholds, going to 7304.59.
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
• Specify 'gas well casing' in commercial invoice to differentiate from oil-only uses
• Provide chemical composition analysis to confirm nonalloy status
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