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.
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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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