API 5ST Grade N80-1 Stainless Steel Drill Tubing
Welded stainless steel tubing designed for oil and gas drilling applications, meeting API 5ST specifications for Grade N80-1 with seamless-like performance. Used as production tubing in well completions to transport hydrocarbons. Classified under 7306.21.8050 as welded stainless steel tubing of a kind used in drilling for oil or gas, other than casing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless rather than welded
Seamless stainless steel tubes for drilling fall under heading 7304, as the manufacturing process changes the primary classification.
If used for casing rather than tubing
Stainless steel casing for drilling protection classified separately from production tubing under 7306.40.
If imported in bulk coils for further fabrication
Hollow profiles in coil form are classified differently from finished cut-to-length tubing.
Not sure which classification is right?
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Import Tips & Compliance
• Verify API 5ST certification and provide mill test reports (MTRs) confirming chemical composition and mechanical properties for stainless steel
• Ensure tubing meets 'of a kind used in drilling' criteria with end connections suitable for oilfield use; misclassification as general pipe common pitfall
• Include hydrostatic test certificates and dimensional compliance docs to avoid customs delays
Related Products under HTS 7306.21.80.50
13CR L80 Welded Stainless Steel Oilfield Tubing
Welded 13% chromium L80 grade stainless steel tubing for corrosive oil and gas environments, used in downhole production strings. Features welded construction with premium connections for drilling and completion operations. Falls under HTS 7306.21.8050 as other welded stainless steel tubing specifically for oil/gas drilling.
Super Duplex 2507 Welded Drill Completion Tubing
High-strength super duplex stainless steel (2507 grade) welded tubing for deepwater oil and gas drilling completions. Provides excellent resistance to pitting and stress corrosion in harsh environments. Classified as other welded stainless steel tubing under 7306.21.8050 for drilling applications.
"2-3/8\" 9.66
Specific 2-3/8 inch OD, 9.66 lb/ft L80 Type 13CR welded stainless steel tubing for oil and gas well completions. Welded construction with EUE 8rd connections for production tubing strings. HTS 7306.21.8050 applies to this other welded stainless steel drill tubing.
Martensitic 410 Stainless Steel Welded Tubing 2-7/8"
Grade 410 martensitic stainless steel welded tubing, 2-7/8" OD for moderate corrosion oilfield applications. Used as liner tubing in drilling operations. Qualifies under 7306.21.8050 as welded stainless steel tubing of a kind used in oil/gas drilling.
Duplex 2205 Welded Production Tubing for Gas Wells
UNS S31803/S32205 duplex stainless steel welded tubing for high-pressure gas well production. Designed with welded seams and upset ends for drilling completion. HTS 7306.21.8050 covers this other stainless steel drill tubing category.
"4-1/2\" 12.75
4-1/2 inch OD, 12.75 lb/ft P110 grade welded stainless steel tubing for high-pressure oil drilling. Features welded construction suitable for sour service environments. Classified under 7306.21.8050 as other welded stainless steel drill tubing.