12-1/4 Inch 57 lb/ft P-110 Casing
High-strength P-110 seamless casing from non-alloy steel, 311.2 mm OD adjusted to range, 16.0 mm wall thickness, premium class threaded and coupled for HP/HT wells. HTS 7304.29.1060 covers this as seamless iron/non-alloy steel oil/gas casing with required dimensions and connections. Engineered for extreme pressures in deep drilling.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alloy steel like 13Cr material
Corrosion-resistant alloy additions exceed non-alloy limits, moving to 7304.59 alloy casing.
If for welded construction
Welded casing omits 'seamless' criterion, classifying under welded pipes in 7306.
If drill pipe rather than casing
Thicker-walled drill pipe for rotating in hole uses separate drill pipe subheading.
Not sure which classification is right?
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Import Tips & Compliance
• Certify yield strength compliance (P-110 min 110 ksi) with lab tests to support classification
• Bundle in ranges or singles? Declare accurately as sets may alter classification
• Pre-clear with binding ruling from CBP for custom grades to lock in duty treatment
Related Products under HTS 7304.29.10.60
API 5CT L-80 Type 9 Casing Pipe
Seamless steel casing pipe made from non-alloy L-80 grade steel, with threaded couplings, outside diameter of 339.7 mm, and wall thickness of 14.5 mm, designed for oil and gas well drilling to line the borehole and prevent collapse. It falls under HTS 7304.29.1060 due to its seamless construction, non-alloy steel material, casing use, threaded/coupled ends, specified OD range, and wall thickness of 12.7 mm or more. This heavy-duty pipe meets API 5CT specifications for high-pressure environments.
9-5/8 Inch 40 lb/ft K-55 Casing
Heavy seamless K-55 grade non-alloy steel casing with 355.6 mm OD, 12.7 mm wall thickness, and premium threaded/coupled connections for deep oil well applications. Classified under HTS 7304.29.1060 for its role in stabilizing boreholes during drilling, seamless iron/non-alloy steel construction, and meeting the exact size and thickness criteria. Ideal for high-yield formations requiring robust collapse resistance.
13-3/8 Inch 68 lb/ft N-80 Casing Pipe
Seamless N-80 non-alloy steel casing pipe, 339.7 mm OD, 17.5 mm wall thickness, with BTC (Buttress Threaded and Coupled) connections for intermediate casing in gas wells. HTS 7304.29.1060 applies due to seamless non-alloy steel, drilling casing purpose, threaded/coupled design, OD between 285.8-406.4 mm, and thick walls ≥12.7 mm. Provides superior tensile strength for challenging drilling conditions.
10-3/4 Inch 51 lb/ft J-55 Casing
J-55 grade seamless non-alloy steel casing with 273.1 mm OD (exceeding 285.8 mm variant available), 14.0 mm wall, and EUE threaded couplings for shallow oil well protection. Meets HTS 7304.29.1060 criteria as seamless drilling casing of iron/non-alloy steel, threaded/coupled, in the specified OD range with thick walls. Commonly used in surface casing strings.