9-5/8 inch 43 ppf L-80 Stainless Steel Oil Well Casing
Seamless stainless steel casing pipe with 9-5/8 inch outside diameter and 43 pounds per foot weight, designed for oil and gas drilling operations to line and stabilize wellbores. Classified under HTS 7304.24.40.80 due to its seamless construction, stainless steel material, use as oil/gas casing, and OD exceeding 406.4 mm (16 inches). Meets API 5CT specifications for L-80 grade in sour service environments.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of carbon steel rather than stainless
Carbon steel casing falls under 7304.41 (other seamless steel casing) based on material composition changing the heading.
If imported as part of complete drilling rig assembly
Parts of oil/gas drilling machines classify under Chapter 84 (machinery parts) when not imported as individual tubular goods.
If welded construction instead of seamless
Welded stainless steel casing exceeding 406.4mm OD moves to Chapter 73 heading 7306 for welded pipes/tubes.
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Import Tips & Compliance
• Require Mill Test Certificates (MTC) confirming chemical composition, mechanical properties, and API 5CT L-80 grade compliance
• Verify seamless construction via NDT reports (UT, EMI) as welded pipes classify under 7304.41+; misclassification risks 10-25% duty penalties
• Ensure proper API monogram marking; customs may require independent inspection certificates for high-value oilfield tubulars
Related Products under HTS 7304.24.40.80
13-3/8 inch 54.5 ppf P-110 Stainless Steel Casing
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