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: > Other: > 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 7306.29.31.00
12-1/4 Inch P-95 Coupled Casing
P-95 12-1/4 inch coupled casing for frac wells. HTS 7306.29.31.00 classification.
5-1/2 Inch H-40 Threaded Production Casing
H-40 grade 5-1/2 inch threaded production casing for hydrocarbon flow zones. HTS 7306.29.31.00 applies to this welded, coupled steel for oil/gas drilling. Cost-effective for shallow productions.
8-5/8 Inch L-80 Premium Threaded Casing
Premium threaded L-80 8-5/8 inch casing with VAM connections for sour service wells. Fits HTS 7306.29.31.00 as advanced welded threaded casing for gas/oil. H2S-resistant for harsh fields.
14 Inch Q-125 Coupled Casing
Ultra-high strength Q-125 14-inch coupled casing for HP/HT wells. HTS 7306.29.31.00 for extreme-duty welded threaded steel in drilling. Withstands 125 ksi yield.
18-5/8 Inch X-56 Threaded Casing
X-56 grade 18-5/8 inch threaded casing for large bore oil wells. Under HTS 7306.29.31.00 as coupled welded for drilling.
6-5/8 Inch T-95 Coupled Casing
T-95 grade 6-5/8 inch coupled for thermal recovery wells. HTS 7306.29.31.00 threaded steel for oil.
11-3/4 Inch C-75 Threaded Casing
C-75 11-3/4 inch threaded for conventional wells. Welded coupled under HTS 7306.29.31.00.
API 5CT L-80 Threaded Casing Pipe
This is a high-strength L-80 grade steel casing pipe used in oil and gas drilling operations, featuring threaded ends for secure coupling. It falls under HTS 7306.29.31.00 as it is welded steel casing of a kind used in drilling for oil or gas, specifically threaded or coupled. The robust construction ensures it can withstand high-pressure downhole environments.
9-5/8 Inch N-80 Coupled Casing
N-80 grade coupled casing with 9-5/8 inch outer diameter, designed for intermediate casing strings in oil wells. Classified under HTS 7306.29.31.00 due to its welded steel construction, threaded couplings, and specific use in oil/gas drilling. It provides corrosion resistance and structural integrity in harsh subsurface conditions.
13-3/8 Inch P-110 Threaded Oil Well Casing
Heavy-duty P-110 grade threaded casing with 13-3/8 inch OD for surface and conductor applications in deep oil wells. It qualifies for HTS 7306.29.31.00 as threaded or coupled welded steel casing specifically for oil/gas drilling. High yield strength supports extreme pressures during extraction.
7 Inch K-55 BTC Coupled Casing
K-55 grade 7-inch casing with Buttress Threaded and Coupled (BTC) connections for production zones in gas wells. Under HTS 7306.29.31.00 for its welded, threaded design tailored to oil/gas drilling. Offers balanced strength and cost for intermediate applications.
10-3/4 Inch J-55 Threaded Surface Casing
J-55 grade threaded surface casing, 10-3/4 inch OD, used to stabilize the upper wellbore in oil drilling. Fits HTS 7306.29.31.00 as other threaded or coupled welded steel casing for oil/gas applications. Provides initial borehole support against collapse.
20 Inch X-52 Coupled Conductor Casing
X-52 grade 20-inch conductor casing with couplings for initial well drilling phases in offshore oil platforms. Classified in HTS 7306.29.31.00 for large-diameter threaded welded steel used in oil/gas drilling. Designed for structural support in marine environments.
4-1/2 Inch C-90 Threaded Liner Casing
C-90 grade 4-1/2 inch threaded liner casing for hanging in existing wellbores during remedial oil work. Meets HTS 7306.29.31.00 criteria as coupled welded steel tubing/casing for gas/oil drilling. Enables zonal isolation in extended wells.
16 Inch M-65 Coupled Casing
M-65 grade 16-inch coupled casing for intermediate sections in high-pressure gas wells. Under HTS 7306.29.31.00 for threaded welded steel casing in oil/gas drilling. Enhanced collapse resistance for deviated wells.