API 5CT N80 Casing Tubing
Seamless or welded steel tubing made from non-alloy steel, conforming to API 5CT specifications for N80 grade, used as casing and tubing in oil and gas drilling operations. It falls under HTS 7306.29.6050 as 'other' tubing of iron or nonalloy steel for drilling purposes, excluding certain specialized types. The tubing supports wellbore stability and fluid extraction in upstream oilfield applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless construction
Seamless tubing shifts to 7306.19 for nonalloy steel, different from welded/open-seamed under 7306.29.
If made of alloy steel
Alloy steel variants (e.g., with chromium/molybdenum) classify under 7306.50, not nonalloy.
If imported as assembled parts of drilling rigs
When supplied as components in a drilling rig set for retail sale, it may fall under machinery parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify API 5CT certification and provide mill test reports (MTRs) to customs for classification validation
• Ensure accurate documentation of steel composition to confirm non-alloy status and avoid reclassification
Related Products under HTS 7306.29.60.50
2-3/8 Inch EUE Tubing
Externally upset end (EUE) tubing, 2-3/8 inch diameter, made of non-alloy steel for oil and gas production strings. HTS 7306.29.6050 covers this as other tubing for drilling applications. Threads allow connection in well completions.
Gas Well Liner Tubing
Non-alloy steel welded liner tubing for gas well completions, extending casing. Under HTS 7306.29.6050 as other tubing for gas drilling. Hanger systems compatible.
Intermediate Casing Tubing
Welded non-alloy intermediate casing tubing for multi-stage oil well construction. HTS 7306.29.6050 covers other nonalloy steel for drilling. Bridges surface and production casing.
P110 High Yield Tubing
P110 grade high-yield strength non-alloy steel tubing for deep oil/gas wells, welded profile. HTS 7306.29.6050 for other nonalloy drilling tubing. Withstands extreme pressures in HPHT wells.
J55 Grade Oil Well Tubing
Welded non-alloy steel tubing in J55 grade per API standards, designed for production tubing in oil wells to convey hydrocarbons. Classified under HTS 7306.29.6050 as other iron/nonalloy steel tubing for oil/gas drilling. It provides structural integrity during extraction phases.
K55 Casing and Tubing
K55 grade non-alloy steel tubing used interchangeably as casing or tubing in shallow oil/gas wells. Falls under HTS 7306.29.6050 for other nonalloy steel tubing in drilling. Offers higher collapse resistance for challenging environments.