"2-7/8\" 6.90
Seamless 2-7/8 inch OD, 6.90 lb/ft 13Cr L80 alloy tubing for corrosive oil/gas well production. Wall thickness 6.45 mm allows deployment in slimhole completions. Classified in 7304.29.61.15 as other alloy steel drilling tubing with specified dimensions.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If carbon steel rather than alloy
Non-alloy steel composition moves to the carbon steel tubing subheading.
If Threaded tubes/bends for pipe fittings use different headings.
If having outside diameter >114.3 mm
Dimension increase shifts to larger OD category.
Not sure which classification is right?
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Import Tips & Compliance
• Certify chromium content ≥12.5% via spectrometer analysis for alloy verification
• Document connection type (e.g
• VAM TOP) separately if threaded ends present
Related Products under HTS 7304.29.61.15
API 5CT P110 13Cr Seamless Casing Tubing
High-strength seamless tubing of 13% chromium alloy steel per API 5CT P110 grade, used as production tubing in oil/gas wells. With OD ≤114.3 mm and wall thickness not over 9.5 mm, it withstands high-pressure sour service conditions. Fits HTS 7304.29.61.15 for other alloy steel drilling tubing.
API 5CT T95 10# 2-3/8" Alloy Tubing
T95 grade seamless alloy steel tubing, 2-3/8" OD at 10 lb/ft for extreme service oil/gas wells. Wall thickness 7.01 mm supports high collapse resistance in drilling. Meets HTS 7304.29.61.15 for small-diameter, thin-wall alloy drilling tubing.
"3-1/2\" 9.30
Q125 grade ultra-high strength seamless tubing, 3-1/2" OD 9.30 lb/ft for H2S sour service environments. Wall 8.26 mm thickness for deep, high-pressure gas wells. Falls under 7304.29.61.15 as alloy steel drilling tubing within size limits.
"2-7/8\" 7.90
Martensitic stainless alloy seamless tubing 2-7/8" OD, 7.90 lb/ft for CO2 corrosion resistance in production tubing. Wall thickness 7.44 mm suits horizontal completions. Although stainless, classified as 'other alloy' drilling tubing under 7304.29.61.15.
"4-1/2\" 10.50
4-1/2 inch OD 10.50 lb/ft 9Cr-110 seamless alloy tubing for high-strength casing/tubing strings. 9.19 mm wall thickness maximizes ID in slimhole applications. HTS 7304.29.61.15 designation for alloy drilling tubing ≤114.3 mm OD.
API 5CT C110 8# 2-3/8" Tubing
C110 restricted yield alloy steel seamless tubing, 2-3/8" 8.00 lb/ft for sour service drilling. Wall 5.61 mm provides balanced strength-to-weight. Classified 7304.29.61.15 as other alloy steel oil/gas tubing.