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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If configured as drill tubing
Tubing for fluid conveyance differs from casing's structural borehole lining role.
If seamless cold-drawn
Precision seamless tubes for mechanical applications classify under 7304.29.
If part of pump/compressor assemblies
When integral to oilfield pumps, shifts to Chapter 84 machinery parts.
Not sure which classification is right?
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Import Tips & Compliance
• Specify 'production casing' end use; include yield strength test data
• Watch for: small diameter overlap with tubing sizes
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
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7 Inch L80 13Cr Corrosion-Resistant Casing
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20 Inch Conductor Casing Pipe P110 Grade
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16 Inch Intermediate Casing C110 Alloy
16-inch C110 grade high-collapse alloy steel intermediate casing welded for multi-stage oil well construction, plain ends. Under HTS 7306.29.41.00 as other iron/steel casing for drilling. Alloy composition resists H2S environments.