9-5/8" 40 ppf P110 Casing with BTC Coupling
High-strength P110 grade seamless alloy steel casing, 9-5/8" OD (244.5 mm), 40 lb/ft, with buttress thread couplings (BTC) and 9.2 mm wall thickness for deep well applications. Used in high-pressure oil and gas drilling operations. Fits 7304.29.31.30 as threaded/coupled seamless alloy casing with OD 215.9-285.8 mm and thin walls.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If shipped uncoupled without threads
Uncoupled or unthreaded casing is classified separately from threaded/coupled products.
If for welded construction instead of seamless
Welded steel casing for drilling falls under the 7304.3x headings, not seamless 7304.2x.
If used as tubing rather than casing
Smaller diameter or production tubing designs may classify under other drill tubing subheadings.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide detailed grade certificates confirming P110 properties; declare exact OD and wall thickness measured per API specs
• Pitfall: incomplete coupling descriptions causing classification as uncoupled tubes under 7304.29.50
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