9-5/8" 47 lb/ft K-55 Casing Pipe
Heavy-duty seamless K-55 non-alloy steel casing with 9-5/8" (244.5 mm) OD and 18.63 mm wall thickness, designed for intermediate casing strings in oil wells. Fits HTS 7304.29.20.40 for its specified dimensions and use in drilling for hydrocarbons.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If OD exceeding 285.8 mm
Larger diameter casings in the same weight class move to the next OD subheading.
If imported assembled into drill pipe
Fully assembled drill pipe with tool joints classified as parts of drilling machinery, not raw casing.
If used for water well drilling
Non-hydrocarbon drilling applications may shift to other steel tube headings.
Not sure which classification is right?
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Import Tips & Compliance
• Provide detailed grade certificates (e.g
• K-55 PSL-1) and hydrostatic test reports to demonstrate fitness for oil/gas use
• Measure wall thickness precisely post-manufacture, as variations can trigger reclassification
• Avoid delays by pre-submitting isometry drawings showing seamless structure and thread type
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