14 Inch P110 Alloy Drill Casing
Seamless P110 grade alloy steel casing pipe, 14 inch (355.6 mm) OD with 15.5 mm wall thickness, high collapse resistance for deep oil/gas drilling. HTS 7304.29.4160 classification for seamless other alloy steel casing in specified OD range with thick walls.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If OD >406.4 mm
Larger diameter casing has separate statistical breakout in 7304.29.4140.
If carbon steel rather than alloy
Carbon steel casing (≤0.95% Cr equivalent) classified under 7304.19.
If welded construction
Welded alloy steel casing for drilling under 7306.40, not seamless 7304.
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
• Include yield strength test results (min 110 ksi for P110) to distinguish from lower grade alloys
• CBP requires dimensional certificates; ensure caliper measurements confirm OD 285.8-406.4 mm range
• Avoid misclassification by specifying 'casing for oil/gas drilling' vs generic tubing on commercial invoice
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