"7\" 32
Type T95 seamless alloy casing, 7-inch OD at 32 lb/ft, engineered for thermal recovery wells with high-temperature resistance. Used as liner in steam injection projects. HTS 7304.29.41 covers this as other alloy steel seamless casing for oil/gas drilling.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If incorporates significant chromium for corrosion resistance
Higher chromium alloys qualify as stainless steel under separate provisions.
If for line pipe service in gathering systems post-drilling
Post-drilling transport piping classified as line pipe rather than drilling casing.
If bundled with centralizers or float equipment as drilling accessories
Complete casing assemblies with accessories classified as drilling parts.
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Import Tips & Compliance
• Include thermal cycling test data to support high-temperature application claims
• Ensure thread type (premium connections) documented separately from plain pipe classification
• Provide collapse and burst test results calibrated to thermal well conditions
Related Products under HTS 7304.29.41
API 5CT L80 Type 9 Casing Pipe
Seamless alloy steel casing pipe meeting API 5CT L80 Type 9 specifications, used to line oil and gas wells during drilling operations. It features enhanced collapse resistance and tensile strength suitable for corrosive environments. Classified under 7304.29.41 as other seamless alloy steel casing for oil/gas drilling, not high-strength types.
"13-3/8\" 72
Heavy wall seamless P110 alloy steel casing with 13-3/8 inch OD and 72 lb/ft weight, designed for deep high-pressure oil wells. Provides structural support and pressure containment during drilling and production. Falls under 7304.29.41 as other alloy steel casing excluding premium grades.
"9-5/8\" 43.5
Seamless L80 alloy steel production casing, 9-5/8 inch diameter weighing 43.5 lb/ft, for intermediate hole sections in directional drilling. Offers sour service resistance (H2S environments) per NACE MR0175. Classified in 7304.29.41 as other seamless alloy casing for drilling applications.
"4-1/2\" 12.6
C95 grade seamless alloy liner casing, 4-1/2 inch x 12.6 lb/ft, for production tubing in unconventional shale plays. Provides zonal isolation in multi-stage frac completions. Fits 7304.29.41 as other seamless alloy steel casing used in drilling operations.