16-Inch OD L80 Coupled Casing for Gas Wells
Welded L80 grade nonalloy steel casing with 16-inch OD and coupled ends, essential for protecting and supporting gas well bores. This product is under HTS 7305.20.20.00 for its oversized circular cross-section, threading/coupling, iron/nonalloy steel material, and drilling-specific design.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If under 406.4 mm diameter
Drilling casing with smaller diameters classifies under other welded tubes in 7306.19.
If seamless other than iron/nonalloy
Seamless casing of alloy steel uses 7304.39, differentiating by manufacturing method.
If imported as tube fittings or adapters
Threaded/coupled sections functioning primarily as fittings go to Chapter 73 heading 7307.
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Import Tips & Compliance
• Label pipes clearly with grade, size, and 'OCTG' (Oil Country Tubular Goods) to support classification
• Watch for minimum wall thickness requirements that could affect 'casing' vs 'tubing' determination
Related Products under HTS 7305.20.20.00
18-5/8 Inch N80 Threaded Drilling Casing
Threaded nonalloy steel casing pipe with 18-5/8 inch OD, N80 grade, welded for use in stabilizing boreholes during oil and gas extraction. It matches HTS 7305.20.20.00 as a large-diameter (>406.4 mm), circular cross-section pipe that is threaded or coupled and designated for drilling casing.
Intermediate Casing Pipe 17-1/2 Inch Coupled N80
17-1/2 inch OD coupled N80 nonalloy steel intermediate casing for mid-depth oil/gas well support, welded with threaded connections. Under HTS 7305.20.20.00 as oversized circular cross-section pipe for drilling, of iron/nonalloy steel, threaded or coupled.
Production Casing 13-3/8 Inch L80 Threaded
13-3/8 inch OD L80 threaded production casing pipe of welded nonalloy steel, used after drilling to case the productive zone. Matches HTS 7305.20.20.00: large-diameter (>406.4 mm equivalent in function), circular, threaded for oil/gas drilling.
API 5CT J55 Threaded Casing Pipe
This is a large-diameter (over 16 inches) welded steel casing pipe made from J55 grade nonalloy steel, featuring threaded ends for coupling in oil well drilling operations. It falls under HTS 7305.20.20.00 because it has a circular cross-section exceeding 406.4 mm external diameter, is threaded or coupled, and is specifically designed as casing for oil or gas drilling.
20-Inch OD K55 Coupled Oil Well Casing
A 20-inch outer diameter coupled casing pipe from K55 nonalloy steel, used to line and stabilize oil or gas wells during drilling. Classified under HTS 7305.20.20.00 due to its welded construction, threaded/coupled joints, circular cross-section over 406.4 mm, and specific use in drilling operations.
22-Inch Diameter P110 Threaded Oil Casing Pipe
High-strength P110 grade nonalloy steel pipe, 22-inch OD, threaded for coupling, used in deep oil drilling to case the wellbore. Fits HTS 7305.20.20.00 precisely as welded, large-diameter (>16 inches), circular steel tube for oil drilling with threaded connections.