"13-3/8\" 72
Heavy wall seamless P110 alloy steel casing with 13-3/8 inch OD and 72 lb/ft weight, designed for deep high-pressure oil wells. Provides structural support and pressure containment during drilling and production. Falls under 7304.29.41 as other alloy steel casing excluding premium grades.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If meets high-strength criteria like yield strength over 125 ksi
Premium high-strength casing qualifies for separate 7304.29.31 statistical breakout.
If for use in water well drilling rather than oil/gas
End-use determines classification; non-hydrocarbon drilling uses other headings.
If produced with welded construction instead of seamless
Welded steel pipes for specific uses like casing fall under Chapter 73 heading 7307.
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Import Tips & Compliance
• Provide detailed dimensional specs (OD, wall thickness, drift diameter) matching API 5CT tables for customs verification
• Include hydrostatic test certificates proving pressure rating to distinguish from lower-grade tubing
• Avoid misdeclaration as drill pipe by excluding kelly bar or tool joint features in documentation
Related Products under HTS 7304.29.41
API 5CT L80 Type 9 Casing Pipe
Seamless alloy steel casing pipe meeting API 5CT L80 Type 9 specifications, used to line oil and gas wells during drilling operations. It features enhanced collapse resistance and tensile strength suitable for corrosive environments. Classified under 7304.29.41 as other seamless alloy steel casing for oil/gas drilling, not high-strength types.
"9-5/8\" 43.5
Seamless L80 alloy steel production casing, 9-5/8 inch diameter weighing 43.5 lb/ft, for intermediate hole sections in directional drilling. Offers sour service resistance (H2S environments) per NACE MR0175. Classified in 7304.29.41 as other seamless alloy casing for drilling applications.
"7\" 32
Type T95 seamless alloy casing, 7-inch OD at 32 lb/ft, engineered for thermal recovery wells with high-temperature resistance. Used as liner in steam injection projects. HTS 7304.29.41 covers this as other alloy steel seamless casing for oil/gas drilling.
"4-1/2\" 12.6
C95 grade seamless alloy liner casing, 4-1/2 inch x 12.6 lb/ft, for production tubing in unconventional shale plays. Provides zonal isolation in multi-stage frac completions. Fits 7304.29.41 as other seamless alloy steel casing used in drilling operations.