9-5/8 inch 40# P110 Stainless Steel Oilfield Casing
Seamless stainless steel casing pipe with 9-5/8 inch (244.5 mm) outside diameter, 40 lb/ft weight, P110 grade, threaded and coupled ends, and wall thickness of 10.54 mm. Used in oil and gas drilling to line and stabilize wellbores. Falls under HTS 7304.24.30.30 due to its seamless construction, stainless steel material, specified OD range, and wall thickness under 12.7 mm.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of alloy steel rather than stainless steel
Non-stainless alloy steel casing with same dimensions moves to subheading 7304.29, as stainless steel is specifically separated.
If welded rather than seamless
Welded stainless steel casing of circular cross-section falls under 7306.40, excluding seamless products classified in 7304.
If wall thickness 12.7 mm or greater
Thicker-walled casing in the same OD range shifts to 7304.24.40.30 statistical suffix.
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Import Tips & Compliance
• Verify API 5CT certification and exact OD/wall thickness measurements to confirm classification under 7304.24.30.30
• Provide mill test certificates (MTC) and thread type documentation (e.g
• BTC, VAM) for customs clearance
• Avoid misclassification by confirming seamless construction vs welded, as welded pipes fall under Chapter 73 headings 7305-7306
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