5-1/2 Inch L80 Type 9Cr Tubing
5-1/2 inch L80 9Cr seamless tubing for corrosive oilfield environments, technically nonalloy per HTS definitions. Used in drilling for CO2/H2S resistance. HTS 7304.29.50 as iron/nonalloy seamless drill tubing.
Import Duty Rates by Country of Origin
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 chromium exceeds nonalloy limits
9Cr often exceeds 1.65% Cr threshold for alloy classification.
If for general mechanical tubing applications
Non-drilling end use shifts to mechanical tubing headings.
If part of filtering/purifying equipment downhole
Integral filtration parts classify with the apparatus.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• 9Cr composition requires mill certs confirming <10.25% total alloying elements
• Declare environmental service (sweet/sour) affecting material selection
Related Products under HTS 7304.29.50
J55 Casing Tubing for Gas Wells
Seamless J55 grade nonalloy steel tubing used as casing in natural gas drilling operations to prevent borehole collapse. Conforms to API standards for high-pressure well environments. Falls under HTS 7304.29.50 for iron/nonalloy steel seamless tubing in oil/gas drilling.
2-3/8 Inch EUE Tubing for Oil Production
External-upset-end (EUE) 2-3/8 inch seamless nonalloy steel tubing for oil production in rod-pumped wells. Features API 8-round threads for reliable connections in drilling completions. Classified in 7304.29.50 as iron/nonalloy drill tubing.
7 Inch K55 Production Tubing
Seamless 7-inch K55 nonalloy steel production tubing used in oil wells post-drilling for fluid extraction. API-spec threaded ends ensure leak-proof performance. Falls under 7304.29.50 as drill tubing of iron or nonalloy steel.
3-1/2 Inch N80Q Quasi-Premium Tubing
3-1/2 inch N80Q quasi-premium tubing, seamless nonalloy steel with enhanced collapse resistance for sour gas drilling. Features special heat treatment per API 5CT. Classified under HTS 7304.29.50 for nonalloy drill tubing.
2-7/8 Inch 6.5 lb/ft Tubing
Lightweight 2-7/8 inch, 6.5 lb/ft seamless nonalloy steel tubing for marginal oil wells and coalbed methane drilling. Standard API connections for easy field makeup. Under 7304.29.50 for drill tubing.
API Spec 5CT C75 Tubing
C75 grade seamless nonalloy steel tubing per API 5CT for controlled yield oil/gas wells. Balances strength and ductility for drilling completions. HTS 7304.29.50 classification for nonalloy drill tubing.