API 5CT Grade J55 Oil Well Casing
Seamless steel casing pipe made from nonalloy steel, meeting API 5CT J55 specifications for oil and gas drilling operations. Used to line the borehole and stabilize the well during extraction. Classified under 7304.29.20 as other seamless casing of iron or nonalloy steel, not cold-drawn or externally coated.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If externally coated with zinc or plastic
Surface-coated casing shifts to 7304.29.31 due to galvanization or protective coating altering the base product classification.
If supplied as threaded and coupled sections
Assembled threaded/coupled casing is treated as line pipe under Chapter 73 heading 7306, distinct from unfinished casing.
If made from alloy steel exceeding nonalloy limits
Higher alloy content (>1.65% manganese or other elements) moves it to alloy steel subheading 7304.59.
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Import Tips & Compliance
• Verify API 5CT certification and provide mill test reports (MTRs) to confirm seamless construction and J55 grade composition
• Ensure proper documentation of nonalloy steel content (<0.25% alloying elements) to avoid reclassification to alloy steel headings
Related Products under HTS 7304.29.20
6-5/8 Inch Production Tubing Casing
Dual-use 6-5/8 inch J55 seamless casing/tubing for production. Classified as casing.
12-1/4 Inch Scab Liner Casing
Repair scab liner 12-1/4 inch N80 seamless for damaged wells. Nonalloy steel.
14 Inch Intermediate Liner J55
14 inch J55 seamless intermediate liner for zonal isolation.
23-3/8 Inch Surface Conductor Casing
Extra-large 23-3/8 inch K55 conductor for surface support. Seamless nonalloy.
20 Inch Conductor Casing J55
Large-diameter 20-inch seamless J55 nonalloy steel conductor casing for initial wellbore support in offshore drilling. Stabilizes surface formations. Classified 7304.29.20 as other casing.
10-3/4 Inch Intermediate Casing P110
High-strength P110 seamless nonalloy casing for intermediate sections, 10-3/4 inch. For deep high-pressure wells. 7304.29.20 classification.