10-3/4 Inch H40 Low-Cost Casing
Economical 10-3/4 inch H40 grade welded steel casing for shallow oil drilling applications, no couplings. HTS 7306.29.41.00 covers this other casing type for oil/gas wells. Basic carbon steel construction for conductor/intermediate use.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with machined threads
Threaded precision tubes separate from plain casing.
If seamless line pipe
Seamless oil/gas line pipe (transport) vs drilling casing (structural).
If for bridge/piling construction
Structural steel piles/columns use heading 7308, not oilfield subs.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Minimal documentation for H40 grade; focus on dimensional accuracy
• Common error: confusing with water well casing under 7306.69
Related Products under HTS 7306.29.41.00
API 5CT J55 Steel Oil Well Casing
This is a seamless steel casing pipe conforming to API 5CT J55 grade specifications, designed for use in oil and gas drilling to line the borehole and prevent collapse. It falls under HTS 7306.29.41.00 as 'other' casing of iron or steel used in drilling for oil or gas, excluding those with attached fittings. The pipe's wall thickness and diameter meet standard oilfield requirements for intermediate casing strings.
9-5/8 Inch N80 Type 9Cr Oil Casing Pipe
A 9-5/8 inch outer diameter N80 grade casing pipe made of 9Cr alloy steel, welded and used to stabilize wellbores in corrosive oil drilling environments. Classified under HTS 7306.29.41.00 as other steel casing for oil or gas drilling, not having fittings. Its chromium content enhances corrosion resistance for intermediate casing applications.
13-3/8 Inch K55 Surface Casing for Gas Wells
Heavy-duty 13-3/8 inch K55 grade welded steel surface casing pipe used in gas well drilling to protect freshwater aquifers and provide structural support. It qualifies for HTS 7306.29.41.00 as other iron or steel casing specifically for oil or gas drilling operations, excluding those with connectors. Standard API dimensions ensure compatibility with rotary drilling rigs.
7 Inch L80 13Cr Corrosion-Resistant Casing
7-inch L80 grade casing featuring 13% chromium content for sour gas environments in oil drilling, welded construction without fittings. Falls under HTS 7306.29.41.00 for other steel casing used in oil or gas drilling. Provides high collapse resistance for production casing strings.
20 Inch Conductor Casing Pipe P110 Grade
Extra-large 20-inch P110 high-strength steel conductor casing for initial borehole support in offshore oil drilling, welded profile without fittings. Classified in HTS 7306.29.41.00 as other casing of iron or steel for oil/gas drilling. High yield strength handles extreme loads during spudding.
4-1/2 Inch Production Casing T95 Grade
Narrow 4-1/2 inch T95 grade welded steel production casing for isolating producing zones in oil wells, no fittings attached. HTS 7306.29.41.00 applies to this other casing designed specifically for oil or gas drilling. Enhanced tensile properties suit deep production sections.