Heavy Wall N80 Nonalloy Tubing 4 Inch OD 14.0 lb/ft
Seamless tubing equivalent to N80 grade nonalloy steel, 101.6 mm OD, 12.7 mm wall for gas well production. Designed for corrosive environments in drilling operations. Classifies in 7304.29.5030 for its seamless nonalloy construction and thick walls exceeding 9.5 mm.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel material
Stainless variants for corrosive wells classify under 7304.29.10 as stainless steel oilfield tubing.
If supplied in coil form
Coiled tubing for continuous drilling operations falls under 7301.20 for seamless steel tube coils.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Submit heat treatment records showing normalized/quenched properties for grade verification
• Bundle in protective shipping caps to prevent thread damage, which could trigger parts classification
• Avoid bulk packaging mislabeled as scrap—clearly mark as new oilfield tubing
Related Products under HTS 7304.29.50.30
API 5CT J55 Casing Tubing 2-3/8 Inch OD 10.2 lb/ft
Seamless steel tubing made from J55 grade nonalloy steel for oil and gas well casing and production tubing. Features an outside diameter of 60.3 mm (2-3/8 inches) and wall thickness of 11.0 mm, exceeding 9.5 mm, used to line boreholes and transport hydrocarbons. Classified under 7304.29.5030 due to its seamless construction, nonalloy steel material, and specifications for drilling applications.
Non-Alloy Steel Drill Tubing 2-7/8 Inch OD 12.75 lb/ft
Heavy-wall seamless tubing of nonalloy steel for oilfield drilling operations, with 73 mm OD and 12.4 mm wall thickness. Serves as production tubing in wells to convey oil/gas from reservoir to surface. Meets HTS 7304.29.5030 for iron/nonalloy steel seamless tubing ≤114.3mm OD with wall >9.5mm used in drilling.
2-3/8 Inch L80 Type 1 Seamless Casing Tubing
L80 Type 1 equivalent nonalloy seamless steel tubing, 60.3 mm OD, 10.5 mm wall thickness for deep oil wells. Provides structural support and fluid conduit in drilling. Meets criteria of HTS 7304.29.5030: seamless iron/nonalloy steel tubing for oil/gas with thick walls.
J55 Grade Seamless Oil Well Tubing 3-1/2 Inch OD 15.5 lb/ft
Seamless J55 nonalloy steel tubing with 88.9 mm OD and 11.4 mm wall thickness for oil well applications. Used as casing or tubing string in drilling to withstand high pressures. Fits 7304.29.5030 as seamless, nonalloy, OD≤114.3mm, wall>9.5mm for oil/gas drilling.