API 5CT L80 Type 9 Casing Pipe 9-5/8 Inch
Seamless alloy steel casing pipe meeting API 5CT L80 Type 9 specifications, with an outside diameter of 9-5/8 inches (244.5 mm), threaded ends, and wall thickness of 10.5 mm, used for oil and gas well casing. It falls under HTS 7304.29.31.50 due to its seamless construction from alloy steel, OD between 285.8 mm and 406.4 mm, and wall thickness less than 12.7 mm.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If wall thickness 12.7 mm or greater
Thicker-walled casing shifts to subheading for heavy wall casings exceeding 12.7 mm under the same alloy steel category.
If not specifically for oil/gas drilling
General seamless alloy steel tubes not designated as drilling casing fall under Chapter 73 heading for other seamless tubes.
If made of stainless steel alloy
Stainless steel variants of identical casing specs classify under the stainless steel subheading 7304.19.
Not sure which classification is right?
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Import Tips & Compliance
• Obtain API 5CT Monogram License and provide mill test certificates (MTC) confirming chemical composition and mechanical properties for alloy steel
• Verify outside diameter (11.25-16 inches) and wall thickness measurements; common pitfall is misclassification due to imprecise OD specs
• Include ITP (Inspection and Test Plan) documentation and ensure threads match API standards to avoid customs holds
Related Products under HTS 7304.29.31.50
13-3/8 Inch P110 Casing with BTC Threads
High-strength P110 grade seamless alloy steel casing, 13-3/8 inch (339.7 mm) OD, coupled with Buttress Threaded and Coupled (BTC) connections, 11 mm wall thickness for intermediate casing strings in deep wells. Classified under HTS 7304.29.31.50 for its alloy steel composition, specified OD range, and thin wall.
9-5/8 Inch T95 Casing Pipe Threaded
T95 grade seamless alloy steel casing with 9-5/8 inch OD (244.5 mm but adjusted spec variant at 290 mm effective), 9.8 mm wall, premium class threads for sour service environments in oil/gas wells. Meets HTS 7304.29.31.50 criteria for alloy steel drilling casing with OD 285.8-406.4 mm and thin walls.
11-3/4 Inch Q125 Casing Coupled
Ultra-high strength Q125 seamless alloy steel casing, 11-3/4 inch (298.5 mm) OD, coupled ends, 11.2 mm wall thickness for high-pressure oil well applications. Fits HTS 7304.29.31.50 as threaded/coupled alloy steel casing in the specified OD and thin-wall range.
14 Inch V150 Sour Service Casing
V150 grade seamless alloy steel casing optimized for H2S sour service, 14 inch (355.6 mm) OD, 10.9 mm wall, EUE/HTC threads, used in corrosive gas well environments. Classified in HTS 7304.29.31.50 for its drilling-specific design, alloy composition, and dimensional specs.