Grade K55 Oil Well Tubing with Coupling
Grade K55 non-alloy steel tubing designed for oil well production and drilling, imported with integral couplings for casing strings. Classified under HTS 7306.29.60.10 due to its welded construction, non-alloy composition, and inclusion of couplings as a complete assembly for drilling use. It meets API specifications for pressure resistance in downhole environments.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported without coupling
Separate importation of tubing excludes it from the 'with coupling' provision.
If drill pipe instead of tubing
Thicker-walled pipe optimized for drilling rotation classifies as drill pipe, not casing/tubing.
If for general boiler applications
If not specifically for oil/gas drilling, it may fall under other welded tubes of heading 7305.
Not sure which classification is right?
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Import Tips & Compliance
• Provide detailed API grade markings and hydrostatic test certificates
• Watch for misdeclaration as casing vs tubing based on OD/ID ratios
• Use ISPM-15 compliant packaging for threaded ends
Related Products under HTS 7306.29.60.10
9-5/8 Inch L80 Surface Casing with Coupling
9-5/8 inch L80 surface casing tubing with couplings for initial well drilling phases, non-alloy welded steel. HTS 7306.29.60.10 covers this imported coupled product for oil/gas use. Protects against collapse in shallow sections.
3-1/2 Inch P110 Pump Tubing with Coupling
3-1/2 inch P110 tubing for downhole pumps in oil production, imported with couplings, welded non-alloy steel. Under HTS 7306.29.60.10 for drilling-related tubing. High strength for artificial lift systems.
5 Inch J55 Intermediate Casing with Coupling
5 inch J55 intermediate casing with couplings for mid-depth oil wells, non-alloy welded. HTS 7306.29.60.10 as coupled tubing.
4-1/2 Inch N80 Liner Tubing with Coupling
4-1/2 inch N80 liner tubing imported coupled for well liners, non-alloy steel.
2-7/8 Inch K55 Injection Tubing with Coupling
2-7/8 inch K55 for water injection, coupled non-alloy tubing.
6-5/8 Inch L80 Conductor Casing with Coupling
6-5/8 inch L80 conductor casing, coupled for initial drilling.