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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If external diameter 406.4 mm or less
Smaller diameter welded steel pipes, even for drilling, shift to Chapter 73 heading 7306 for other tubes/pipes.
If seamless construction
Seamless casing pipes for oil/gas drilling are classified under 7304, as the heading specifies seamless tubes.
If made of stainless steel
Stainless steel versions of these large-diameter threaded casing pipes fall under the stainless steel subheading.
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Import Tips & Compliance
• Verify API 5CT certification and provide mill test certificates (MTC) to confirm nonalloy steel composition and threaded specifications
• Ensure markings for grade (e.g
• J55), size, and threading type comply with API standards to avoid reclassification
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.
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.
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.
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.