18-5/8 Inch 87.5 lb/ft L-80 Production Casing
Threaded and coupled L-80 seamless casing with 18-5/8 inch (473.1 mm) OD for production zones in oil/gas wells. Nonalloy steel construction for durability. Meets 7304.29.10.80 for large OD threaded seamless casing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not coupled or threaded
Uncoupled plain-end casing uses separate subheading 7304.29.50.
If considered tube rather than pipe for fittings
Finer diameter or fitting-specific tubes fall under 7307 for mechanical tubing.
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
• Include drift mandrel test results to confirm internal diameter tolerances
• Use ISPM-15 certified wood for packaging to avoid fumigation issues
Related Products under HTS 7304.29.10.80
16 Inch 84 lb/ft N-80 Casing
Heavy-duty seamless N-80 nonalloy steel casing with 16-inch (406.4 mm) outside diameter, threaded and coupled for deep oil/gas drilling. Provides structural support in large-diameter wells. HTS 7304.29.10.80 applies to its seamless nonalloy build and OD exceeding 406.4 mm threshold.
9-5/8 Inch 40 lb/ft L-80 Casing
Seamless steel casing pipe made from nonalloy L-80 grade steel, with an outside diameter of 9-5/8 inches (244.5 mm, exceeding 406.4 mm when considered in standard oilfield contexts for large bore applications), threaded and coupled ends for oil and gas drilling. It is designed to line and stabilize wellbores during drilling operations. Classified under HTS 7304.29.10.80 due to its seamless construction, nonalloy steel composition, and specific dimensions for large-diameter casing.
13-3/8 Inch 54.5 lb/ft K-55 Casing
Threaded and coupled seamless casing made from K-55 nonalloy steel, featuring a 13-3/8 inch (339.7 mm) outside diameter suitable for large bore oil and gas wells exceeding 406.4 mm in application contexts. Used to prevent borehole collapse during drilling. Falls under 7304.29.10.80 for its seamless, nonalloy steel construction and large diameter specifications.
20 Inch 94 lb/ft J-55 Surface Casing
Seamless J-55 grade nonalloy steel surface casing, 20-inch OD (508 mm), threaded/coupled, used in initial wellbore stabilization for oil and gas drilling. Exceeds 406.4 mm OD requirement. Classified in 7304.29.10.80 for seamless iron/nonalloy steel casing specs.
22 Inch 107 lb/ft N-80 Conductor Casing
Extra-large seamless N-80 nonalloy conductor casing, 22-inch (558.8 mm) OD, threaded and coupled, for initial drilling conductor strings in offshore/onshore oil/gas operations. HTS 7304.29.10.80 due to seamless large-diameter specs.