127 mm OD Duplex Stainless Drill Tubing Heavy
Duplex stainless steel seamless tubing used as drill pipe, 127 mm OD with heavy wall >9.5 mm for corrosive offshore oil drilling. Classified in HTS 7304.22.0045 for stainless steel drill pipe specs in oil/gas applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported in coils for further processing
Coiled welded stainless tubing for drilling classifies under welded headings.
If alloy steel but not stainless
Non-stainless alloy drill pipe under iron/other steel alloy subheading.
If integral to mining drill assemblies
Machinery for earth/rock drilling shifts to Chapter 84 classification.
Not sure which classification is right?
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Import Tips & Compliance
• Specify duplex grade (e.g
• 2205) in documentation; standard stainless may shift to lower headings
• Confirm no welds via non-destructive testing reports to maintain seamless status
• Beware of import as 'casing'—drill pipe requires specific upset/tool joint features
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