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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If having an external diameter over 406.4 mm
Larger OD casings (>16 inches) have a dedicated subheading.
If seamless and high-pressure rated
Seamless variants for drilling shift to Chapter 73 seamless tubes.
If imported in fittings-attached sets for retail sale
Tube or pipe fittings assemblies may classify under fittings headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide hydrostatic test reports to demonstrate pressure ratings during customs clearance
• Label bundles clearly with size, weight, and API grade to facilitate warehouse handling
Related Products 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.