3-1/2 Inch P-110 Casing with LTC Coupling
High-strength P-110 seamless casing, 3-1/2 inch OD, 11.5 mm wall, long round thread couplings (LTC), for deep oil drilling. Classified in HTS 7304.29.10.10 for its seamless nonalloy steel construction, threaded design, small OD, and thin wall suited for gas/oil well casing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alloy steel P-110 variant
Higher alloy grades like certain P-110 shift to 7304.39 alloy steel casing.
If sold as boiler or superheater tubes
Specific end-use for boilers moves to 7306.19 subheading.
If imported as pump or compressor parts
If machined for pump shafts, classifies under Chapter 84 machinery parts.
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 end-user statements confirming oil/gas drilling use to distinguish from other tubes
• Beware of alloy content exceeding limits; test for nonalloy compliance (<1.65% Cr, etc.)
• Batch imports by exact specs to simplify customs processing and quota tracking
Related Products under HTS 7304.29.10.10
API 5CT L-80 Threaded Casing Pipe
Seamless threaded steel casing pipe made from L-80 grade nonalloy steel, with an outside diameter of 4.5 inches and wall thickness of 10 mm, designed for oil and gas well drilling. It falls under HTS 7304.29.10.10 due to its seamless construction, threaded ends, small diameter under 215.9 mm, and thin wall under 12.7 mm, used specifically as casing in drilling operations.
4-1/2 Inch N-80 Casing with BTC Threads
Seamless N-80 nonalloy steel casing pipe, 4-1/2 inch OD, 9.5 mm wall thickness, featuring buttress thread couplings (BTC) for oil well applications. Classified under HTS 7304.29.10.10 as threaded/coupled seamless casing of iron/nonalloy steel with OD <215.9 mm and wall <12.7 mm for drilling.
Threaded J-55 Casing for Shallow Gas Wells
Seamless J-55 grade nonalloy steel casing with round thread and coupling (RTC), 3-1/2 inch OD, 11 mm wall thickness, suited for shallow gas well drilling. It meets HTS 7304.29.10.10 criteria for seamless, threaded oil/gas casing under 215.9 mm OD and <12.7 mm wall.
5 Inch K-55 Premium Threaded Casing
Seamless K-55 nonalloy steel casing pipe with premium VAM threads, 5-inch OD, 10.54 mm wall, for intermediate oil well sections. Falls under HTS 7304.29.10.10 as it's seamless, threaded/coupled, nonalloy steel casing for drilling with OD <215.9 mm and thin walls.
2-3/8 Inch H-40 Casing Pipe Threaded
Lightweight H-40 seamless nonalloy casing, 2-3/8 inch OD, 6.5 mm wall, EUE threading, for slimhole gas wells. Meets HTS 7304.29.10.10 as small OD, thin wall, threaded seamless casing dedicated to oil/gas drilling.
5-1/2 Inch M-65 Coupled Casing
M-65 grade seamless steel casing with integral couplings, 5-1/2 inch OD, 11.2 mm wall, for production tubing in oil wells. Classified under HTS 7304.29.10.10 for threaded/coupled, small thin-wall seamless nonalloy casing in drilling operations.