Threaded or coupled
Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: > Casing and tubing of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > Threaded or coupled
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Products classified under HTS 7306.29.10
4-1/2 Inch Intermediate Casing Coupled
Slim 4-1/2 inch intermediate casing, J55 grade with flush threaded couplings for mid-depth oil well support. Nonalloy welded steel. Classified in 7306.29.10 for threaded drilling casing.
16 Inch Surface Casing API Threaded
16-inch surface casing with API 8-round threads and couplings, nonalloy steel for shallow well protection. Essential first string in drilling. 7306.29.10 for threaded/coupled type.
10-3/4 Inch H40 Coupled Casing String
H40 grade 10-3/4 inch casing string, fully threaded and coupled for oilfield use. Lower yield strength nonalloy steel. Under 7306.29.10 as welded threaded casing.
Premium LTC Threaded Casing 8-5/8 Inch
8-5/8 inch casing with Long-Threaded and Coupled (LTC) connections, N80 nonalloy steel for reliable seals. Welded for drilling ops. 7306.29.10 classification.
C-90 Grade Threaded Oil Casing 12-1/4 Inch
C-90 grade nonalloy casing, 12-1/4 inch with integral threaded ends for oil production. High collapse resistance. Fits threaded 7306.29.10.
5-1/2 Inch L80 Type 9 Cr Casing Coupled
Restricted alloy L80 Type 9 Cr (9% chromium) casing, but nonalloy base, 5-1/2 inch threaded. For sour service wells. 7306.29.10 if confirmed nonalloy.
18-5/8 Inch Welded Threaded Casing
Extra-large 18-5/8 inch welded casing with threaded couplings, J55 nonalloy for conductor applications. 7306.29.10 threaded category.
BTC Coupled N80-1 Casing 9-5/8 Inch
9-5/8 inch N80-1 casing with Buttress Threaded and Coupled (BTC) joints, nonalloy steel. Enhanced thread for torque. HTS 7306.29.10.
Threaded Surface Casing 14 Inch J55
14 inch J55 surface casing, fully coupled and threaded for initial wellbore lining. Standard nonalloy welded pipe. Perfect match for 7306.29.10.
API 5CT J55 Threaded Casing Pipe
Threaded and coupled steel casing pipe made from J55 grade nonalloy steel, used to line oil and gas wells during drilling. It features API standard threads for secure connections and stabilizes the borehole. Classified under 7306.29.10 as threaded casing of iron or nonalloy steel for oil/gas drilling.
9-5/8 Inch K55 Coupled Oil Well Casing
9-5/8 inch outer diameter K55 grade threaded and coupled casing for oil well applications, constructed from nonalloy steel. The couplings ensure pressure-tight seals in drilling operations. Fits 7306.29.10 for welded, threaded iron/nonalloy steel casing used in oil/gas drilling.
7 Inch P110 Threaded Production Casing
High-strength P110 grade threaded and coupled casing, 7-inch diameter, for production zones in oil/gas wells. Nonalloy steel with premium connections for corrosive environments. HTS 7306.29.10 applies to this welded drilling casing.
20 Inch Conductor Casing Threaded Joints
Large 20-inch conductor casing with integral threaded couplings, nonalloy steel for initial oil well hole stabilization. Welded open-seam profile. Fits 7306.29.10 as threaded iron/nonalloy steel for drilling.
Threaded N80 Casing for Gas Wells
N80 grade nonalloy steel casing with premium threaded couplings, designed for gas well drilling to withstand high pressures. Welded construction with external upset ends for strength. Qualifies under 7306.29.10 as threaded casing of iron or nonalloy steel for drilling.
13-3/8 Inch L80 Coupled Drilling Casing
Heavy-duty 13-3/8 inch L80 nonalloy steel casing, threaded and coupled for surface casing in oil drilling. Provides structural support against collapse. Covered by 7306.29.10 for its welded, threaded design in oil/gas applications.