K55 Drill Tubing 3-1/2 inch
Seamless K55 non-alloy steel tubing with 3-1/2 inch (88.9 mm) OD and 7.34 mm wall, employed as drill tubing in oil/gas exploration wells. Fits HTS 7304.29.50.15 for seamless non-alloy casing/tubing with OD ≤114.3 mm and thin walls.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If threaded and assembled into pipe fittings
Threaded tube ends made into fittings classify under 7307.19 for pipe connectors.
If imported in unfinished coil form
Coiled seamless tubes before final sizing are often under 7304.39 for other delivery forms.
If parts of drilling rigs
Tubing integral to drilling machinery may classify as parts under 8431.43.
Not sure which classification is right?
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Import Tips & Compliance
• Include hydrostatic test reports as proof of pressure rating for drilling use
• Specify 'not for boiler/pressure vessel use' to avoid Chapter 73 note exclusions
• Use ISPM-15 compliant packaging for threaded ends to prevent damage claims
Related Products under HTS 7304.29.50.15
API 5CT N80-1 Oilfield Tubing
Seamless steel tubing made from non-alloy N80-1 grade steel, used as production tubing in oil and gas wells to convey oil or gas from the reservoir. It has an outside diameter not exceeding 114.3 mm and wall thickness ≤9.5 mm, classified under 7304.29.50.15 as non-alloy steel tubing for drilling applications.
J55 Casing Tubing 2-3/8 inch
Seamless J55 grade non-alloy steel tubing with 2-3/8 inch (60.3 mm) OD and wall thickness of 4.83 mm, designed for oil well casing and production tubing in drilling operations. Meets API 5CT standards for oil/gas drilling, fitting 7304.29.50.15 due to size specs and non-alloy composition.
L80 Type 1 Production Tubing 2-7/8 inch
Seamless non-alloy L80 Type 1 steel tubing, 2-7/8 inch (73 mm) OD with 6.45 mm wall thickness, used in oil and gas production wells for fluid transport. Classified in 7304.29.50.15 as iron/non-alloy steel tubing ≤114.3 mm OD and ≤9.5 mm wall for drilling.
H40 Oil Well Tubing 4 inch
Seamless H40 grade non-alloy steel tubing, 4 inch (101.6 mm) OD with 8.0 mm wall thickness, for oil well production and casing strings. Precisely matches 7304.29.50.15 criteria for small-diameter, thin-walled seamless steel tubing in drilling.
N80Q Non-Alloy Tubing 2-3/8 inch EUE
Seamless N80Q non-alloy tubing with external-upset ends (EUE), 2-3/8 inch OD, 5.21 mm wall, for gas well production. HTS 7304.29.50.15 applies to this small OD, thin-wall seamless steel for oil/gas drilling.
P110 Tubing 3 inch Thin Wall
High-strength P110 non-alloy grade seamless tubing, 3 inch (76.2 mm) OD with 7.01 mm wall thickness, used in high-pressure oil/gas wells. Classifies under 7304.29.50.15 for non-alloy drilling tubing with specified small dimensions.